Cleaned up naming. Commented several classes properly. Bookmarks get stored in SharedPreferences. Bookmarks can be added through menu.
Future support of bookmark menu disabling
Fixed broken Gson with interfaces. Made GalleryAdapter abstract and construction is handled as a visitor to stick with our modularity.
Added overflow menu for bookmarks
Fixed NavItemClicked which was called on original item. Up navigation implemented as well
Added iml to ignore
Removed iml from index
Renamed GalleryAdapter
Merge pull request #5 from Ecchilon/4-bookmarks

Bookmarks can be added to the navigation drawer