open book from bookmarks view
Merge branch 'master' into library-service

Conflicts:
	src/org/geometerplus/android/fbreader/BookmarksActivity.java
	src/org/geometerplus/fbreader/fbreader/FBReaderApp.java
use standard book key for selected book in library
Merge branch 'master' into library-service

Conflicts:
	src/org/geometerplus/android/fbreader/ShowLibraryAction.java
	src/org/geometerplus/android/fbreader/library/LibraryActivity.java