Some miscellaneous cleanup, moving to version 0.2
- Cleaned up code (some Android Lint errors) and added comments
- Deleted unused/unnecessary code (GalleryPagerAdapter, menu/launch.xml, menu/load_group_list.xml)
- Moved code from ImportImageFragment to AddNotecardActivity
- Moved pngs from res/drawable to res/drawable-mdpi
- Fixed Up button action to use existing activities
- Added onSaveInstanceState methods
- More miscellaneous changes