Basics of tag-based navigation and gallery views
Added additional directory for thumbs in external storage
Removed gallery button, accepted a myTag and myImageId parameter from
the bundle
Initialize FileUtils paths, since this is also an app entry point
Type change: List<File> out, List<Image> in
Added thumbnail generation when images are shared to the app
Schema/Manager changes to manage thumbnails
Added context menu for actions that can be taken on tags
Default the first image shown to "myImageId"
Updated thumbnail size, burned down commented code
Added multi-select checkboxes in gallery view