Revert "Revert akka-libs-210 to 49d90828517bd03dbb52e878430c4af47df33992"

This reverts commit c8e7d1641fb39a778d1beeb5e66b7500e542f190. We upgraded
to sbt 0.13.7 in previous commit so the workaround from
c8e7d1641fb39a778d1beeb5e66b7500e542f190 is not needed anymore.

Macro paradise is kept at 0.13.5 because otherwise it blows up with

[paradise-210] java.lang.NullPointerException
[paradise-210] 	at xsbt.Dependency$ExtractDependenciesByMemberRefTraverser$$anonfun$1.isDefinedAt(Dependency.scala:142)
[paradise-210] 	at xsbt.Dependency$ExtractDependenciesByMemberRefTraverser$$anonfun$1.isDefinedAt(Dependency.scala:141)
[paradise-210] 	at xsbt.Dependency$CollectTypeTraverser.traverse(Dependency.scala:89)