Removing django-requests since it is not compatible with Django 1.5
Added debug-false-only filter to mail_admins, see Django 1.4 release notes to learn why it is neede
direct_to_template does not exist anymore, switched to TemplateView
Removing django-relationships since it is not compatible with 1.5. Also the author says it is an elaborate hack and should not be needed anymore: https://github.com/coleifer/django-relationships/pull/30
Used variables in urls where possible
Merge branch 'django15' of github.com:ingenieroariel/geonode

Conflicts:
	geonode/upload/templates/upload/layer_upload.html
	geonode/upload/templates/upload/no_upload.html