Merge pull request #214 from sunnychaudhari/mongokit

Bug resolved in collection module
notification bug solved
Merge pull request #215 from anujag/mongokit

notification bug solved
saved function is implemented for designer form
Merge pull request #217 from Dhiru/mongokit

saving of types is implemented for designer form
minor change in ndf_tags.py
after merge
Fixed graph error. Now it's visible.
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
Updated user group settings