Switch to sbt-remote-control 1.0-46280b51037faa6d50698c46c8725d33b75cae1e

This doesn't add sbt-echo to akka 2.3.{0,1,2}
Bump template cache to 1.0-a369fc100e493d824745e457b45685ecd4c890a5

This one synchronizes the versions of akka and scala and sbt it uses
Merge pull request #528 from typesafehub/wip/havocp-new-sbrc

Switch to sbt-remote-control 1.0-46280b51037faa6d50698c46c8725d33b75cae1...