changes
minor correction in template
additions in node_edit_base
intermediate changes
recursive method implemented in concept translation
Merge branch 'mongokit' of https://github.com/gnowledge/gstudio into mongokit
Merge pull request #460 from sunnychaudhari/mongokit

Urls and views updated for browse topic & browse resource
Commented url removed
Merge branch 'mongokit' of https://github.com/gnowledge/gstudio into mongokit

Conflicts:
	gnowsys-ndf/gnowsys_ndf/ndf/templatetags/ndf_tags.py
list of apps displaying in app selections widget
Error resolved while creating pages & modified method for concept translation
Merge pull request #461 from Dhiru/mongokit

list of apps displaying in app selections widget
Merge pull request #462 from supriyasawant/mongokit

Error resolved while creating/editing pages with changs made in get_possible_translations method
intermediate commit
user preference added to turn off notification preferences
modified switch group urls for url changes
Merge pull request #452 from anujag/mongokit

page_edit error solved
Merge branch 'mongokit' of https://github.com/gnowledge/gstudio into mongokit
Bug resolved in page create
Minor changes in template