highlighting style choice activity
refactoring: selection bookmark creation code moved from FBReader to FBReaderApp and SelectionBookmarkAction

Conflicts:
	src/org/geometerplus/android/fbreader/FBReader.java
highlighting color selection ui (in progress)
style choice UI
Merge branch 'master' into ice-cream-sandwich

Conflicts:
	src/org/geometerplus/android/fbreader/FBReader.java