Update changelog

Author: falkTX

ChangeLog.rst

@@ -3,14 +3,18 @@ ChangeLog
 
 * 1.9.17 (2021-01-15)
 
-WIP!
-
-  * Add jack-router to Windows installer, opt-in
   * Fix jack_control stopping after first command iteration
   * Fix registry keys for Windows, add 32bit compat ones on 64bit
   * Fix library compat/current version under macOS
+  * Fix return codes of jackd on success
+  * Ignore DB_VERSION_MISMATCH error on windows, it is expected
+  * Remove old workaround for asio4all, as it breaks with jack-router
+
+External changes, related to macOS/Windows installer:
+  * Add jack-router to Windows installer, opt-in
   * Support for arm64 macOS builds
-  * Update QjackCtl used in macOS/Windows installers to v0.9.0, with 1 commit cherry-picked from develop branch
+  * Show welcome and license pages on windows installer
+  * Update QjackCtl used in macOS/Windows installers to v0.9.0, with some commits cherry-picked from develop branch
 
 * 1.9.16 (2020-10-16)