diff --git a/package-lock.json b/package-lock.json
index 20be3c5..c7cef3c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -21235,11 +21235,6 @@
       "resolved": "https://registry.npmjs.org/thunky/-/thunky-1.1.0.tgz",
       "integrity": "sha512-eHY7nBftgThBqOyHGVN+l8gF0BucP09fMo0oO/Lb0w1OF80dJv+lDVpXG60WMQvkcxAkNybKsrEIE3ZtKGmPrA=="
     },
-    "time-stamp": {
-      "version": "2.2.0",
-      "resolved": "https://registry.npmjs.org/time-stamp/-/time-stamp-2.2.0.tgz",
-      "integrity": "sha512-zxke8goJQpBeEgD82CXABeMh0LSJcj7CXEd0OHOg45HgcofF7pxNwZm9+RknpxpDhwN4gFpySkApKfFYfRQnUA=="
-    },
     "timed-out": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/timed-out/-/timed-out-4.0.1.tgz",
@@ -22271,12 +22266,11 @@
       }
     },
     "webpack-dev-server": {
-      "version": "2.11.3",
-      "resolved": "https://registry.npmjs.org/webpack-dev-server/-/webpack-dev-server-2.11.3.tgz",
-      "integrity": "sha512-Qz22YEFhWx+M2vvJ+rQppRv39JA0h5NNbOOdODApdX6iZ52Diz7vTPXjF7kJlfn+Uc24Qr48I3SZ9yncQwRycg==",
+      "version": "3.1.11",
+      "resolved": "https://registry.npmjs.org/webpack-dev-server/-/webpack-dev-server-3.1.11.tgz",
+      "integrity": "sha512-E/uGbO9ndXrXgNUzw+O2UrrvYY/eIw10fpJnbvJf8VOH/NWZuY3nUG7arbgB/kbkORlF/sPHxnv10tKFtKf3aA==",
       "requires": {
         "ansi-html": "0.0.7",
-        "array-includes": "^3.0.3",
         "bonjour": "^3.5.0",
         "chokidar": "^2.0.0",
         "compression": "^1.5.2",
@@ -22285,23 +22279,27 @@
         "del": "^3.0.0",
         "express": "^4.16.2",
         "html-entities": "^1.2.0",
-        "http-proxy-middleware": "~0.17.4",
-        "import-local": "^1.0.0",
-        "internal-ip": "1.2.0",
+        "http-proxy-middleware": "~0.18.0",
+        "import-local": "^2.0.0",
+        "internal-ip": "^3.0.1",
         "ip": "^1.1.5",
         "killable": "^1.0.0",
         "loglevel": "^1.4.1",
         "opn": "^5.1.0",
         "portfinder": "^1.0.9",
+        "schema-utils": "^1.0.0",
         "selfsigned": "^1.9.1",
+        "semver": "^5.6.0",
         "serve-index": "^1.7.2",
         "sockjs": "0.3.19",
-        "sockjs-client": "1.1.5",
-        "spdy": "^3.4.1",
+        "sockjs-client": "1.3.0",
+        "spdy": "^4.0.0",
         "strip-ansi": "^3.0.0",
         "supports-color": "^5.1.0",
-        "webpack-dev-middleware": "1.12.2",
-        "yargs": "6.6.0"
+        "url": "^0.11.0",
+        "webpack-dev-middleware": "3.4.0",
+        "webpack-log": "^2.0.0",
+        "yargs": "12.0.2"
       },
       "dependencies": {
         "ansi-regex": {
@@ -22309,28 +22307,15 @@
           "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
           "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8="
         },
-        "arr-diff": {
-          "version": "2.0.0",
-          "resolved": "https://registry.npmjs.org/arr-diff/-/arr-diff-2.0.0.tgz",
-          "integrity": "sha1-jzuCf5Vai9ZpaX5KQlasPOrjVs8=",
-          "requires": {
-            "arr-flatten": "^1.0.1"
-          }
-        },
-        "array-unique": {
-          "version": "0.2.1",
-          "resolved": "https://registry.npmjs.org/array-unique/-/array-unique-0.2.1.tgz",
-          "integrity": "sha1-odl8yvy8JiXMcPrc6zalDFiwGlM="
-        },
         "binary-extensions": {
           "version": "1.13.1",
           "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-1.13.1.tgz",
           "integrity": "sha512-Un7MIEDdUC5gNpcGDV97op1Ywk748MpHcFTHoYs6qnj1Z3j7I53VG3nwZhKzoBZmbdRNnb6WRdFlwl7tSDuZGw=="
         },
         "camelcase": {
-          "version": "3.0.0",
-          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-3.0.0.tgz",
-          "integrity": "sha1-MvxLn82vhF/N9+c7uXysImHwqwo="
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-4.1.0.tgz",
+          "integrity": "sha1-1UVjW+HjPFQmScaRc+Xeas+uNN0="
         },
         "chokidar": {
           "version": "2.1.8",
@@ -22351,6 +22336,31 @@
             "upath": "^1.1.1"
           }
         },
+        "cliui": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/cliui/-/cliui-4.1.0.tgz",
+          "integrity": "sha512-4FG+RSG9DL7uEwRUZXZn3SS34DiDPfzP0VOiEwtUWlE+AR2EIg+hSyvrIgUUfhdgR/UkAeW2QHgeP+hWrXs7jQ==",
+          "requires": {
+            "string-width": "^2.1.1",
+            "strip-ansi": "^4.0.0",
+            "wrap-ansi": "^2.0.0"
+          },
+          "dependencies": {
+            "ansi-regex": {
+              "version": "3.0.0",
+              "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-3.0.0.tgz",
+              "integrity": "sha1-7QMXwyIGT3lGbAKWa922Bas32Zg="
+            },
+            "strip-ansi": {
+              "version": "4.0.0",
+              "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-4.0.0.tgz",
+              "integrity": "sha1-qEeQIusaw2iocTibY1JixQXuNo8=",
+              "requires": {
+                "ansi-regex": "^3.0.0"
+              }
+            }
+          }
+        },
         "debug": {
           "version": "3.2.6",
           "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.6.tgz",
@@ -22359,6 +22369,23 @@
             "ms": "^2.1.1"
           }
         },
+        "decamelize": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/decamelize/-/decamelize-2.0.0.tgz",
+          "integrity": "sha512-Ikpp5scV3MSYxY39ymh45ZLEecsTdv/Xj2CaQfI8RLMuwi7XvjX9H/fhraiSuU+C5w5NTDu4ZU72xNiZnurBPg==",
+          "requires": {
+            "xregexp": "4.0.0"
+          }
+        },
+        "default-gateway": {
+          "version": "2.7.2",
+          "resolved": "https://registry.npmjs.org/default-gateway/-/default-gateway-2.7.2.tgz",
+          "integrity": "sha512-lAc4i9QJR0YHSDFdzeBQKfZ1SRDG3hsJNEkrpcZa8QhBfidLAilT60BDEIVUUGqosFp425KOgB3uYqcnQrWafQ==",
+          "requires": {
+            "execa": "^0.10.0",
+            "ip-regex": "^2.1.0"
+          }
+        },
         "del": {
           "version": "3.0.0",
           "resolved": "https://registry.npmjs.org/del/-/del-3.0.0.tgz",
@@ -22372,36 +22399,34 @@
             "rimraf": "^2.2.8"
           }
         },
-        "expand-brackets": {
-          "version": "0.1.5",
-          "resolved": "https://registry.npmjs.org/expand-brackets/-/expand-brackets-0.1.5.tgz",
-          "integrity": "sha1-3wcoTjQqgHzXM6xa9yQR5YHRF3s=",
+        "eventsource": {
+          "version": "1.0.7",
+          "resolved": "https://registry.npmjs.org/eventsource/-/eventsource-1.0.7.tgz",
+          "integrity": "sha512-4Ln17+vVT0k8aWq+t/bF5arcS3EpT9gYtW66EPacdj/mAFevznsnyoHLPy2BA8gbIQeIHoPsvwmfBftfcG//BQ==",
           "requires": {
-            "is-posix-bracket": "^0.1.0"
+            "original": "^1.0.0"
           }
         },
-        "extglob": {
-          "version": "0.3.2",
-          "resolved": "https://registry.npmjs.org/extglob/-/extglob-0.3.2.tgz",
-          "integrity": "sha1-Lhj/PS9JqydlzskCPwEdqo2DSaE=",
+        "execa": {
+          "version": "0.10.0",
+          "resolved": "https://registry.npmjs.org/execa/-/execa-0.10.0.tgz",
+          "integrity": "sha512-7XOMnz8Ynx1gGo/3hyV9loYNPWM94jG3+3T3Y8tsfSstFmETmENCMU/A/zj8Lyaj1lkgEepKepvd6240tBRvlw==",
           "requires": {
-            "is-extglob": "^1.0.0"
-          },
-          "dependencies": {
-            "is-extglob": {
-              "version": "1.0.0",
-              "resolved": "https://registry.npmjs.org/is-extglob/-/is-extglob-1.0.0.tgz",
-              "integrity": "sha1-rEaBd8SUNAWgkvyPKXYMb/xiBsA="
-            }
+            "cross-spawn": "^6.0.0",
+            "get-stream": "^3.0.0",
+            "is-stream": "^1.1.0",
+            "npm-run-path": "^2.0.0",
+            "p-finally": "^1.0.0",
+            "signal-exit": "^3.0.0",
+            "strip-eof": "^1.0.0"
           }
         },
         "find-up": {
-          "version": "1.1.2",
-          "resolved": "https://registry.npmjs.org/find-up/-/find-up-1.1.2.tgz",
-          "integrity": "sha1-ay6YIrGizgpgq2TWEOzK1TyyTQ8=",
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/find-up/-/find-up-3.0.0.tgz",
+          "integrity": "sha512-1yD6RmLI1XBfxugvORwlck6f75tYL+iR0jqwsOrOxMZyGYqUuDhJ0l4AXdO1iX/FTs9cBAMEk1gWSEx1kSbylg==",
           "requires": {
-            "path-exists": "^2.0.0",
-            "pinkie-promise": "^2.0.0"
+            "locate-path": "^3.0.0"
           }
         },
         "fsevents": {
@@ -22414,6 +22439,11 @@
             "nan": "^2.12.1"
           }
         },
+        "get-stream": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/get-stream/-/get-stream-3.0.0.tgz",
+          "integrity": "sha1-jpQ9E1jcN1VQVOy+LtsFqhdO3hQ="
+        },
         "glob-parent": {
           "version": "3.1.0",
           "resolved": "https://registry.npmjs.org/glob-parent/-/glob-parent-3.1.0.tgz",
@@ -22452,102 +22482,31 @@
             }
           }
         },
-        "handle-thing": {
-          "version": "1.2.5",
-          "resolved": "https://registry.npmjs.org/handle-thing/-/handle-thing-1.2.5.tgz",
-          "integrity": "sha1-/Xqtcmvxpf0W38KbL3pmAdJxOcQ="
-        },
         "http-proxy-middleware": {
-          "version": "0.17.4",
-          "resolved": "https://registry.npmjs.org/http-proxy-middleware/-/http-proxy-middleware-0.17.4.tgz",
-          "integrity": "sha1-ZC6ISIUdZvCdTxJJEoRtuutBuDM=",
+          "version": "0.18.0",
+          "resolved": "https://registry.npmjs.org/http-proxy-middleware/-/http-proxy-middleware-0.18.0.tgz",
+          "integrity": "sha512-Fs25KVMPAIIcgjMZkVHJoKg9VcXcC1C8yb9JUgeDvVXY0S/zgVIhMb+qVswDIgtJe2DfckMSY2d6TuTEutlk6Q==",
           "requires": {
             "http-proxy": "^1.16.2",
-            "is-glob": "^3.1.0",
-            "lodash": "^4.17.2",
-            "micromatch": "^2.3.11"
-          },
-          "dependencies": {
-            "braces": {
-              "version": "1.8.5",
-              "resolved": "https://registry.npmjs.org/braces/-/braces-1.8.5.tgz",
-              "integrity": "sha1-uneWLhLf+WnWt2cR6RS3N4V79qc=",
-              "requires": {
-                "expand-range": "^1.8.1",
-                "preserve": "^0.2.0",
-                "repeat-element": "^1.1.2"
-              }
-            },
-            "is-glob": {
-              "version": "3.1.0",
-              "resolved": "https://registry.npmjs.org/is-glob/-/is-glob-3.1.0.tgz",
-              "integrity": "sha1-e6WuJCF4BKxwcHuWkiVnSGzD6Eo=",
-              "requires": {
-                "is-extglob": "^2.1.0"
-              }
-            },
-            "micromatch": {
-              "version": "2.3.11",
-              "resolved": "https://registry.npmjs.org/micromatch/-/micromatch-2.3.11.tgz",
-              "integrity": "sha1-hmd8l9FyCzY0MdBNDRUpO9OMFWU=",
-              "requires": {
-                "arr-diff": "^2.0.0",
-                "array-unique": "^0.2.1",
-                "braces": "^1.8.2",
-                "expand-brackets": "^0.1.4",
-                "extglob": "^0.3.1",
-                "filename-regex": "^2.0.0",
-                "is-extglob": "^1.0.0",
-                "is-glob": "^2.0.1",
-                "kind-of": "^3.0.2",
-                "normalize-path": "^2.0.1",
-                "object.omit": "^2.0.0",
-                "parse-glob": "^3.0.4",
-                "regex-cache": "^0.4.2"
-              },
-              "dependencies": {
-                "is-extglob": {
-                  "version": "1.0.0",
-                  "resolved": "https://registry.npmjs.org/is-extglob/-/is-extglob-1.0.0.tgz",
-                  "integrity": "sha1-rEaBd8SUNAWgkvyPKXYMb/xiBsA="
-                },
-                "is-glob": {
-                  "version": "2.0.1",
-                  "resolved": "https://registry.npmjs.org/is-glob/-/is-glob-2.0.1.tgz",
-                  "integrity": "sha1-0Jb5JqPe1WAPP9/ZEZjLCIjC2GM=",
-                  "requires": {
-                    "is-extglob": "^1.0.0"
-                  }
-                }
-              }
-            },
-            "normalize-path": {
-              "version": "2.1.1",
-              "resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-2.1.1.tgz",
-              "integrity": "sha1-GrKLVW4Zg2Oowab35vogE3/mrtk=",
-              "requires": {
-                "remove-trailing-separator": "^1.0.1"
-              }
-            }
-          }
-        },
-        "import-local": {
-          "version": "1.0.0",
-          "resolved": "https://registry.npmjs.org/import-local/-/import-local-1.0.0.tgz",
-          "integrity": "sha512-vAaZHieK9qjGo58agRBg+bhHX3hoTZU/Oa3GESWLz7t1U62fk63aHuDJJEteXoDeTCcPmUT+z38gkHPZkkmpmQ==",
-          "requires": {
-            "pkg-dir": "^2.0.0",
-            "resolve-cwd": "^2.0.0"
+            "is-glob": "^4.0.0",
+            "lodash": "^4.17.5",
+            "micromatch": "^3.1.9"
           }
         },
         "internal-ip": {
-          "version": "1.2.0",
-          "resolved": "https://registry.npmjs.org/internal-ip/-/internal-ip-1.2.0.tgz",
-          "integrity": "sha1-rp+/k7mEh4eF1QqN4bNWlWBYz1w=",
+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/internal-ip/-/internal-ip-3.0.1.tgz",
+          "integrity": "sha512-NXXgESC2nNVtU+pqmC9e6R8B1GpKxzsAQhffvh5AL79qKnodd+L7tnEQmTiUAVngqLalPbSqRA7XGIEL5nCd0Q==",
           "requires": {
-            "meow": "^3.3.0"
+            "default-gateway": "^2.6.0",
+            "ipaddr.js": "^1.5.2"
           }
         },
+        "invert-kv": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/invert-kv/-/invert-kv-2.0.0.tgz",
+          "integrity": "sha512-wPVv/y/QQ/Uiirj/vh3oP+1Ww+AWehmi1g5fFWGPF6IpCBCDVrhgHRMvrLfdYcwDh3QJbGXDW4JAuzxElLSqKA=="
+        },
         "is-binary-path": {
           "version": "1.0.1",
           "resolved": "https://registry.npmjs.org/is-binary-path/-/is-binary-path-1.0.1.tgz",
@@ -22556,14 +22515,6 @@
             "binary-extensions": "^1.0.0"
           }
         },
-        "is-fullwidth-code-point": {
-          "version": "1.0.0",
-          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-1.0.0.tgz",
-          "integrity": "sha1-754xOG8DGn8NZDr4L95QxFfvAMs=",
-          "requires": {
-            "number-is-nan": "^1.0.0"
-          }
-        },
         "is-path-cwd": {
           "version": "1.0.0",
           "resolved": "https://registry.npmjs.org/is-path-cwd/-/is-path-cwd-1.0.0.tgz",
@@ -22585,92 +22536,88 @@
             "path-is-inside": "^1.0.1"
           }
         },
-        "load-json-file": {
-          "version": "1.1.0",
-          "resolved": "https://registry.npmjs.org/load-json-file/-/load-json-file-1.1.0.tgz",
-          "integrity": "sha1-lWkFcI1YtLq0wiYbBPWfMcmTdMA=",
+        "lcid": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/lcid/-/lcid-2.0.0.tgz",
+          "integrity": "sha512-avPEb8P8EGnwXKClwsNUgryVjllcRqtMYa49NTsbQagYuT1DcXnl1915oxWjoyGrXR6zH/Y0Zc96xWsPcoDKeA==",
           "requires": {
-            "graceful-fs": "^4.1.2",
-            "parse-json": "^2.2.0",
-            "pify": "^2.0.0",
-            "pinkie-promise": "^2.0.0",
-            "strip-bom": "^2.0.0"
-          },
-          "dependencies": {
-            "pify": {
-              "version": "2.3.0",
-              "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
-              "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw="
-            }
+            "invert-kv": "^2.0.0"
           }
         },
-        "mime": {
-          "version": "1.6.0",
-          "resolved": "https://registry.npmjs.org/mime/-/mime-1.6.0.tgz",
-          "integrity": "sha512-x0Vn8spI+wuJ1O6S7gnbaQg8Pxh4NNHb7KSINmEWKiPE4RKOplvijn+NkmYmmRgP68mc70j2EbeTFRsrswaQeg=="
+        "locate-path": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-3.0.0.tgz",
+          "integrity": "sha512-7AO748wWnIhNqAuaty2ZWHkQHRSNfPVIsPIfwEOWO22AmaoVrWavlOcMR5nzTLNYvp36X220/maaRsrec1G65A==",
+          "requires": {
+            "p-locate": "^3.0.0",
+            "path-exists": "^3.0.0"
+          }
         },
         "normalize-path": {
           "version": "3.0.0",
           "resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-3.0.0.tgz",
           "integrity": "sha512-6eZs5Ls3WtCisHWp9S2GUy8dqkpGi4BVSz3GaqiE6ezub0512ESztXUwUB6C6IKbQkY2Pnb/mD4WYojCRwcwLA=="
         },
-        "p-map": {
-          "version": "1.2.0",
-          "resolved": "https://registry.npmjs.org/p-map/-/p-map-1.2.0.tgz",
-          "integrity": "sha512-r6zKACMNhjPJMTl8KcFH4li//gkrXWfbD6feV8l6doRHlzljFWGJ2AP6iKaCJXyZmAUMOPtvbW7EXkbWO/pLEA=="
-        },
-        "parse-json": {
-          "version": "2.2.0",
-          "resolved": "https://registry.npmjs.org/parse-json/-/parse-json-2.2.0.tgz",
-          "integrity": "sha1-9ID0BDTvgHQfhGkJn43qGPVaTck=",
-          "requires": {
-            "error-ex": "^1.2.0"
-          }
-        },
-        "path-exists": {
-          "version": "2.1.0",
-          "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-2.1.0.tgz",
-          "integrity": "sha1-D+tsZPD8UY2adU3V77YscCJ2H0s=",
-          "requires": {
-            "pinkie-promise": "^2.0.0"
-          }
-        },
-        "path-type": {
-          "version": "1.1.0",
-          "resolved": "https://registry.npmjs.org/path-type/-/path-type-1.1.0.tgz",
-          "integrity": "sha1-WcRPfuSR2nBNpBXaWkBwuk+P5EE=",
+        "os-locale": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/os-locale/-/os-locale-3.1.0.tgz",
+          "integrity": "sha512-Z8l3R4wYWM40/52Z+S265okfFj8Kt2cC2MKY+xNi3kFs+XGI7WXu/I309QQQYbRW4ijiZ+yxs9pqEhJh0DqW3Q==",
           "requires": {
-            "graceful-fs": "^4.1.2",
-            "pify": "^2.0.0",
-            "pinkie-promise": "^2.0.0"
+            "execa": "^1.0.0",
+            "lcid": "^2.0.0",
+            "mem": "^4.0.0"
           },
           "dependencies": {
-            "pify": {
-              "version": "2.3.0",
-              "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
-              "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw="
+            "execa": {
+              "version": "1.0.0",
+              "resolved": "https://registry.npmjs.org/execa/-/execa-1.0.0.tgz",
+              "integrity": "sha512-adbxcyWV46qiHyvSp50TKt05tB4tK3HcmF7/nxfAdhnox83seTDbwnaqKO4sXRy7roHAIFqJP/Rw/AuEbX61LA==",
+              "requires": {
+                "cross-spawn": "^6.0.0",
+                "get-stream": "^4.0.0",
+                "is-stream": "^1.1.0",
+                "npm-run-path": "^2.0.0",
+                "p-finally": "^1.0.0",
+                "signal-exit": "^3.0.0",
+                "strip-eof": "^1.0.0"
+              }
+            },
+            "get-stream": {
+              "version": "4.1.0",
+              "resolved": "https://registry.npmjs.org/get-stream/-/get-stream-4.1.0.tgz",
+              "integrity": "sha512-GMat4EJ5161kIy2HevLlr4luNjBgvmj413KaQA7jt4V8B4RDsfpHk7WQ9GVqfYyyx8OS/L66Kox+rJRNklLK7w==",
+              "requires": {
+                "pump": "^3.0.0"
+              }
             }
           }
         },
-        "read-pkg": {
-          "version": "1.1.0",
-          "resolved": "https://registry.npmjs.org/read-pkg/-/read-pkg-1.1.0.tgz",
-          "integrity": "sha1-9f+qXs0pyzHAR0vKfXVra7KePyg=",
+        "p-limit": {
+          "version": "2.3.0",
+          "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-2.3.0.tgz",
+          "integrity": "sha512-//88mFWSJx8lxCzwdAABTJL2MyWB12+eIY7MDL2SqLmAkeKU9qxRvWuSyTjm3FUmpBEMuFfckAIqEaVGUDxb6w==",
           "requires": {
-            "load-json-file": "^1.0.0",
-            "normalize-package-data": "^2.3.2",
-            "path-type": "^1.0.0"
+            "p-try": "^2.0.0"
           }
         },
-        "read-pkg-up": {
-          "version": "1.0.1",
-          "resolved": "https://registry.npmjs.org/read-pkg-up/-/read-pkg-up-1.0.1.tgz",
-          "integrity": "sha1-nWPBMnbAZZGNV/ACpX9AobZD+wI=",
+        "p-locate": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-3.0.0.tgz",
+          "integrity": "sha512-x+12w/To+4GFfgJhBEpiDcLozRJGegY+Ei7/z0tSLkMmxGZNybVMSfWj9aJn8Z5Fc7dBUNJOOVgPv2H7IwulSQ==",
           "requires": {
-            "find-up": "^1.0.0",
-            "read-pkg": "^1.0.0"
+            "p-limit": "^2.0.0"
           }
         },
+        "p-map": {
+          "version": "1.2.0",
+          "resolved": "https://registry.npmjs.org/p-map/-/p-map-1.2.0.tgz",
+          "integrity": "sha512-r6zKACMNhjPJMTl8KcFH4li//gkrXWfbD6feV8l6doRHlzljFWGJ2AP6iKaCJXyZmAUMOPtvbW7EXkbWO/pLEA=="
+        },
+        "p-try": {
+          "version": "2.2.0",
+          "resolved": "https://registry.npmjs.org/p-try/-/p-try-2.2.0.tgz",
+          "integrity": "sha512-R4nPAVTAU0B9D35/Gk3uJf/7XYbQcyohSKdvAxIRSNghFl4e71hVoGnBNQz9cWaXxO2I10KTC+3jMdvvoKw6dQ=="
+        },
         "readdirp": {
           "version": "2.2.1",
           "resolved": "https://registry.npmjs.org/readdirp/-/readdirp-2.2.1.tgz",
@@ -22686,71 +22633,32 @@
           "resolved": "https://registry.npmjs.org/require-main-filename/-/require-main-filename-1.0.1.tgz",
           "integrity": "sha1-l/cXtp1IeE9fUmpsWqj/3aBVpNE="
         },
-        "spdy": {
-          "version": "3.4.7",
-          "resolved": "https://registry.npmjs.org/spdy/-/spdy-3.4.7.tgz",
-          "integrity": "sha1-Qv9B7OXMD5mjpsKKq7c/XDsDrLw=",
-          "requires": {
-            "debug": "^2.6.8",
-            "handle-thing": "^1.2.5",
-            "http-deceiver": "^1.2.7",
-            "safe-buffer": "^5.0.1",
-            "select-hose": "^2.0.0",
-            "spdy-transport": "^2.0.18"
-          },
-          "dependencies": {
-            "debug": {
-              "version": "2.6.9",
-              "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
-              "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
-              "requires": {
-                "ms": "2.0.0"
-              }
-            },
-            "ms": {
-              "version": "2.0.0",
-              "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
-              "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
-            }
+        "schema-utils": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/schema-utils/-/schema-utils-1.0.0.tgz",
+          "integrity": "sha512-i27Mic4KovM/lnGsy8whRCHhc7VicJajAjTrYg11K9zfZXnYIt4k5F+kZkwjnrhKzLic/HLU4j11mjsz2G/75g==",
+          "requires": {
+            "ajv": "^6.1.0",
+            "ajv-errors": "^1.0.0",
+            "ajv-keywords": "^3.1.0"
           }
         },
-        "spdy-transport": {
-          "version": "2.1.1",
-          "resolved": "https://registry.npmjs.org/spdy-transport/-/spdy-transport-2.1.1.tgz",
-          "integrity": "sha512-q7D8c148escoB3Z7ySCASadkegMmUZW8Wb/Q1u0/XBgDKMO880rLQDj8Twiew/tYi7ghemKUi/whSYOwE17f5Q==",
-          "requires": {
-            "debug": "^2.6.8",
-            "detect-node": "^2.0.3",
-            "hpack.js": "^2.1.6",
-            "obuf": "^1.1.1",
-            "readable-stream": "^2.2.9",
-            "safe-buffer": "^5.0.1",
-            "wbuf": "^1.7.2"
-          },
-          "dependencies": {
-            "debug": {
-              "version": "2.6.9",
-              "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
-              "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
-              "requires": {
-                "ms": "2.0.0"
-              }
-            },
-            "ms": {
-              "version": "2.0.0",
-              "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
-              "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
-            }
-          }
+        "semver": {
+          "version": "5.7.1",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
+          "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ=="
         },
-        "string-width": {
-          "version": "1.0.2",
-          "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
-          "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
+        "sockjs-client": {
+          "version": "1.3.0",
+          "resolved": "https://registry.npmjs.org/sockjs-client/-/sockjs-client-1.3.0.tgz",
+          "integrity": "sha512-R9jxEzhnnrdxLCNln0xg5uGHqMnkhPSTzUZH2eXcR03S/On9Yvoq2wyUZILRUhZCNVu2PmwWVoyuiPz8th8zbg==",
           "requires": {
-            "code-point-at": "^1.0.0",
-            "is-fullwidth-code-point": "^1.0.0",
-            "strip-ansi": "^3.0.0"
+            "debug": "^3.2.5",
+            "eventsource": "^1.0.7",
+            "faye-websocket": "~0.11.1",
+            "inherits": "^2.0.3",
+            "json3": "^3.3.2",
+            "url-parse": "^1.4.3"
           }
         },
         "strip-ansi": {
@@ -22761,52 +22669,52 @@
             "ansi-regex": "^2.0.0"
           }
         },
-        "strip-bom": {
-          "version": "2.0.0",
-          "resolved": "https://registry.npmjs.org/strip-bom/-/strip-bom-2.0.0.tgz",
-          "integrity": "sha1-YhmoVhZSBJHzV4i9vxRHqZx+aw4=",
-          "requires": {
-            "is-utf8": "^0.2.0"
-          }
-        },
         "webpack-dev-middleware": {
-          "version": "1.12.2",
-          "resolved": "https://registry.npmjs.org/webpack-dev-middleware/-/webpack-dev-middleware-1.12.2.tgz",
-          "integrity": "sha512-FCrqPy1yy/sN6U/SaEZcHKRXGlqU0DUaEBL45jkUYoB8foVb6wCnbIJ1HKIx+qUFTW+3JpVcCJCxZ8VATL4e+A==",
+          "version": "3.4.0",
+          "resolved": "https://registry.npmjs.org/webpack-dev-middleware/-/webpack-dev-middleware-3.4.0.tgz",
+          "integrity": "sha512-Q9Iyc0X9dP9bAsYskAVJ/hmIZZQwf/3Sy4xCAZgL5cUkjZmUZLt4l5HpbST/Pdgjn3u6pE7u5OdGd1apgzRujA==",
           "requires": {
             "memory-fs": "~0.4.1",
-            "mime": "^1.5.0",
-            "path-is-absolute": "^1.0.0",
+            "mime": "^2.3.1",
             "range-parser": "^1.0.3",
-            "time-stamp": "^2.0.0"
+            "webpack-log": "^2.0.0"
           }
         },
+        "which-module": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/which-module/-/which-module-2.0.0.tgz",
+          "integrity": "sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho="
+        },
+        "xregexp": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/xregexp/-/xregexp-4.0.0.tgz",
+          "integrity": "sha512-PHyM+sQouu7xspQQwELlGwwd05mXUFqwFYfqPO0cC7x4fxyHnnuetmQr6CjJiafIDoH4MogHb9dOoJzR/Y4rFg=="
+        },
         "yargs": {
-          "version": "6.6.0",
-          "resolved": "https://registry.npmjs.org/yargs/-/yargs-6.6.0.tgz",
-          "integrity": "sha1-eC7CHvQDNF+DCoCMo9UTr1YGUgg=",
+          "version": "12.0.2",
+          "resolved": "https://registry.npmjs.org/yargs/-/yargs-12.0.2.tgz",
+          "integrity": "sha512-e7SkEx6N6SIZ5c5H22RTZae61qtn3PYUE8JYbBFlK9sYmh3DMQ6E5ygtaG/2BW0JZi4WGgTR2IV5ChqlqrDGVQ==",
           "requires": {
-            "camelcase": "^3.0.0",
-            "cliui": "^3.2.0",
-            "decamelize": "^1.1.1",
+            "cliui": "^4.0.0",
+            "decamelize": "^2.0.0",
+            "find-up": "^3.0.0",
             "get-caller-file": "^1.0.1",
-            "os-locale": "^1.4.0",
-            "read-pkg-up": "^1.0.1",
+            "os-locale": "^3.0.0",
             "require-directory": "^2.1.1",
             "require-main-filename": "^1.0.1",
             "set-blocking": "^2.0.0",
-            "string-width": "^1.0.2",
-            "which-module": "^1.0.0",
-            "y18n": "^3.2.1",
-            "yargs-parser": "^4.2.0"
+            "string-width": "^2.0.0",
+            "which-module": "^2.0.0",
+            "y18n": "^3.2.1 || ^4.0.0",
+            "yargs-parser": "^10.1.0"
           }
         },
         "yargs-parser": {
-          "version": "4.2.1",
-          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-4.2.1.tgz",
-          "integrity": "sha1-KczqwNxPA8bIe0qfIX3RjJ90hxw=",
+          "version": "10.1.0",
+          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-10.1.0.tgz",
+          "integrity": "sha512-VCIyR1wJoEBZUqk5PA+oOBF6ypbwh5aNB3I50guxAL/quggdfs4TtNHQrSazFA3fYZ+tEqfs0zIGlv0c/rgjbQ==",
           "requires": {
-            "camelcase": "^3.0.0"
+            "camelcase": "^4.1.0"
           }
         }
       }
diff --git a/package.json b/package.json
index 4af417e..97b9afd 100644
--- a/package.json
+++ b/package.json
@@ -46,7 +46,7 @@
     "sw-precache-webpack-plugin": "0.11.4",
     "url-loader": "0.6.2",
     "webpack": "3.8.1",
-    "webpack-dev-server": "2.11.3",
+    "webpack-dev-server": "3.1.11",
     "webpack-manifest-plugin": "1.3.2",
     "whatwg-fetch": "2.0.3"
   },