#152 #151 #150 fixes

Fixing these issues;
#150 show progress on add or remove item bookmark.
#151 remove click handler then reinstate via 'complete' of ajax
#152 restructure database handling for library metadata
Merge branch 'master' of https://github.com/ISN-Zurich/PersonalDossiers

Conflicts:
	scripts/models/libraryBookmarkModel.js