Fix #14 Update Xitrum from 3.2 to 3.3
Remove implicit executionContext (Use xitrum's context in FutureAction)
https://github.com/ngocdaothanh/xitrum/blob/master/src/main/scala/xitrum/Action.scala#L45
Merge branch 'master' of https://github.com/georgeOsdDev/xitrum-placeholder

Conflicts:
	build.sbt