using akka from github instead of precompiled version
Merge branch 'master' into feature/use_akka_from_github

Conflicts:
	project/Build.scala
Merge branch 'master' into feature/use_akka_from_github
correct github url
Merge pull request #18 from octo47/feature/use_akka_from_github

Use custom akka until #3547 not resovled