Don't default to dev mode : Make it a fatal error
Merge branch 'lighthouse-1593'
Fix exception when application.mode is something else then DEV or PROD
[#1593]

[#1593] Don't default to dev mode : Make it a fatal error
Switch JDK to 1.6
[#1636]
Upgraded to async-http-client 1.7.8
Merge branch 'master' of https://github.com/playframework/play