Merge remote-tracking branch 'origin/wip/windows-space-issues' into wip/new-play-22
Initial cut at Play 2.2 support.

* Use not-in-master play run hooks to inject our behavior into play.
* Migrate test listener to separate class for cleaner code.
* Modify test util so we can make play 2.2 projects.
* Add a test that ensures we get the open socket from play's `run` task.
Removing stale directory I had forgotten about.
Add sbt 0.13 support for eclipse and idea.
Removing idea/eclipse shims as a necessity for 0.12.

* idea/eclipse shim files now empty
* Default shim can handle running the gen-idea/eclipse commands
* Adding tests for sbt 0.12 idea/eclipse usage.
Merge remote-tracking branch 'origin/master' into wip/play-22-support
Update to latest play snapshot release.
Merge pull request #10 from sbt/wip/play-22-support

Wip/play 22 support