Adding an attribute to the album xml file to include the idInAlbum of the album thumbnail
Added functions to get all photos associated with a hash in the albums db, and a function to delete all instances of a photo from both db's
patches to work around thumbnails crashing the app when photos are deleted from the filesystem while the app is running
Merge branch 'master' of https://github.com/bsanders/softeng
Tagging this as release 2.6.1