Better defaults for Android Studio.

If this plugin is configured to run under Android Studio there is no
real need to have Java files use the Java docset whilst the Android
docset is a much better fit (as it is a superset of Java's anyway).
Merge https://github.com/gdelmas/IntelliJDashPlugin

Conflicts:
	src/de/dreamlab/dash/KeywordLookup.java
Merge pull request #4 from agatti/master

Better defaults for Android Studio.