Updated Roadmap page.
Updated Roadmap page.

* Milestone 3 ends in July (not June)
* Gave credit to Eric for "Move to Eclipse Indigo"
* Added "ScalaTest support" as not inlined possible feature to include in Helium release.

ar-android/docs,sschaef/docs,ar-android/docs,wpopielarski/docs,wpopielarski/docs,sschaef/docs,sschaef/docs,ar-android/docs,scala-ide/docs,scala-ide/docs,scala-ide/docs,wpopielarski/docs,ar-android/docs