minor change in ndf_tags.py
after merge
Merge pull request #218 from kedar2a/mongokit

Fixed graph error. Now it's visible.
bug resolved related to file name url
Merge pull request #219 from krishna31/mongokit

bug resolved in file url
content org implemented in designer form
Merge branch 'mongokit' of github.com:gnowledge/gstudio into mongokit
Removed unnecessary files as those were not required anymore.
Added location field to Node class for geo-tags.
Merge pull request #222 from AvadootNachankar/mongokit

Added "location" field to Node class for geo-tags
Added MetaType "GAPP" and made member_of of  each APP
Merge branch 'mongokit' of https://github.com/gnowledge/gstudio into mongokit
Updated User group implementation
Merge pull request #224 from sunnychaudhari/mongokit

Updated User group implementation
set option widget is implemented in designer module
dummy template is added for template tags
Merge branch 'mongokit' of github.com:gnowledge/gstudio into mongokit
Removed unecessary file.
Removed unecessary code from respective file(s).
required fields added in designer modules