Url modified to accept node's id as second parameter (previously accepting 'home' as a value)
Mongodb query synatx modified and HttpResponseRedirect() modified.
Merge pull request #263 from AvadootNachankar/mongokit

Bug resolved: Now you can edit respective groups (doesn't takes you to 'home' group)
Merge branch 'mongokit' of https://github.com/gnowledge/gstudio into mongokit