Add SBT build files with cross-building.
Merge pull request #5 from crealytics/sbt_cross_build

Add SBT build files with cross-building.
Add public `newDaemonThreadFactory`, `newFixedThreadPool` and `newContext` helpers.
Merge branch 'master' into bizo-2.10

* master:
  Add public `newDaemonThreadFactory`, `newFixedThreadPool` and `newContext` helpers.
  Add SBT build files with cross-building.