Merge pull request #1 from helllamer/master

add support for play 2.2.0
Fixed overriden settings which clashed with non-play submodules
Merge pull request #2 from mcveat/settings-fix

Fixed overriden settings which clashed with non-play submodules
fix tests by using play.PlayExceptions.AssetCompilationException
change Readme for new release
migration to play-2.3