sbt/sbt — pull request #1276 by jsuereth (2014-04-21 15:10:26+00:00)
Title: Automatically run GC/finalization after each task execution.

Fixes #1223.

* Add a new key to disable forcing the garbage collector to run
after each task-executioin
* Add a new flag to disable forcing the garbage collector to run
after each task-exeuction
* Add a hook into EvalauteTask to run System.gc/System.runFinalization
after each task execution

Review by @eed3si9n