Merge pull request #27 from AvadootNachankar/mongokit

History-version-file creation/updataion modified and implemented GApps toolbar
Upload any file on gstudio gridfs
changes in installation file
after merging conflict
Implemented Collection module.
Implemented Collection module.
Merge pull request #28 from krishna31/mongokit

Mongokit
Merge pull request #29 from sunnychaudhari/mongokit

Implemented Collection module.
Previous bugs resolved.
Merge pull request #30 from sunnychaudhari/mongokit

resolved the problems resulted from the last merge, which was a hasty and untested merge.
minor correction in ajax-views.py
Error resolved at file uploding page
minor change: DB changed to db in group.py
Template to provide view/edit action for common fields(Name, Tags, etc) of Node class. [But for prior_node -- code needs to be written]
This template replaces previously known display_page.html, and adds edit_node_details.html into it.
Few fields (created_at, created_by, last_update, and modified_by) gets updated, each time a document is created/updated.
Both functions of ajax-views deleted, and hence also there corresponding urls; along with this 'display_page' url is replaced with 'edit_page'.
Both functions of ajax-views deleted, and hence also there corresponding urls; along with this 'display_page' url is replaced with 'edit_page'.
Implemented one click Edit for page.