Inserting Collaborator object and formset.
Merging public project members and external collaborators into people listing.
Fixing problem with returning the 'instituion' field.
Inserting user photo.
Inserting thumbnail management.
Adding default thumbnails.
Merge branch 'devel' into luca

Conflicts:
	cog/templatetags/cog_utils.py
Merge branch 'devel' into luca
Working on image upload and delete.
Adding photo field functionality for collaborators.
Working on thumbnail management.
Hyperlinking people listing to personal profile pages.
Creating new project metadata Development properties (COG-510).
Inserting URL and logo for partners, sponsors.
Refactoring method names.
Cleaning up the code.
Cleaning up the code.
Merge branch 'devel' into luca
Ordering sponsors and partners in display.
Inserting new 'notfound' logos.