Merge pull request #77 from justinlatimer/update-travis

Fix Travis: io.js 3.x requires g++ 4.8

Author: drewish

.travis.yml

@@ -4,13 +4,22 @@ node_js:
   - "0.10"
   - "0.8"
   - "iojs"
-  - "iojs-v1.0.4"
-before_install:
- - sudo apt-get install libasound2-dev alsa-utils alsa-oss
+  - "iojs-v2"
+  - "iojs-v1"
+addons:
+  apt:
+    sources:
+    - ubuntu-toolchain-r-test
+    packages:
+    - g++-4.8
+    - libasound2-dev
 notifications:
   email: false
 # Travis has no snd-dummy driver (https://github.com/travis-ci/travis-ci/issues/1754)
-# so our tests won't run. We run `npm install` as the test script so build errors
-# appear as test failures.
+# preventing our tests from running. Instead we disable the default `npm install`
+# installation step and run it as test script so compilation erros will mark the
+# build as failed.
 install: true
-script: npm install
+script:
+  - export CXX=g++-4.8
+  - npm install