Curate up release notes & add 3.3.1-0.3.1
CB-5962 Set version to 3.3.1-0.3.1
CB-5962 Incremented plugin version to -dev branch.
CB-5962 Change platforms.js to point back to 3.3.1
2015 -> 2014 in RELEASENOTES
Revert "CB-5962 Change platforms.js to point back to 3.3.1"

This reverts commit 047568993dafb8b8962f666f5db993632cc3ec39.
serve: don't use slice() needlessly
Draft support for injecting style sheets into cordova serve