Merge pull request #420 from kedar2a/mongokit

Now map will render properly even if user accessed location is none.
change group_id to group_name in urls
Merge branch 'mongokit' of github.com:gnowledge/gstudio into mongokit
Merge pull request #421 from Dhiru/mongokit

change group_id to group_name in urls
modified group.py for app_list
Merge pull request #422 from anujag/mongokit

modified group.py for app_list
Now markers can be edited successfully.
Merge branch 'mongokit' of http://github.com/gnowledge/gstudio into mongokit