Added onError to PlayRunHook, which is called whenever play run has an exception.
add compression option
Merge pull request #2437 from andrewconner/playrunhook_onerror

Adding onError to PlayRunHook, which is called whenever play run has an exception.
Merge pull request #2443 from jilen/ws_add_compression_option

play-ws add compression option
Add Java 8 lambda-friendly factory method to WebSocket
Merge pull request #2475 from pvlugter/websocket-java8

Add WebSocket.whenReady for Java 8