intermediate changes
removed conflicts in merge
intermediate commit
intermediate commit after resolving conflicts
resolved conflict
Added MetaType "GAPP" and made member_of of  each APP
Merge branch 'mongokit' of https://github.com/gnowledge/gstudio into mongokit
intermediate commit
intermediate change
group_set migration applied
added migrate_group_set
Merge pull request #231 from Dhiru/mongokit

bug resolved on language fields
resolved conflicts after merge
group_set migration applied
post_node field added to Node class; and collection_set moved from GSystem to Node class.
Code added in order to add/update following fields: post_node and collection_set
group_set migration
Merge pull request #223 from krishna31/mongokit

Added MetaType "GAPP" and made member_of of each APP
Conflict resolved with commit #231
Merged #231 code with some changes