Modifications: DATA_TYPE_CHOICES and get_possible_relations() function.
Intermediate: MIS-GAPP Types (structure) creation.
Bug Resolved: Editing collections -- [Getting {'': 24-digit-hexstring} instead of ObjectId()]
Merge branch 'mongokit' of https://github.com/gnowledge/gstudio into mongokit
Merge branch 'mongokit' of https://github.com/AvadootNachankar/gstudio into mongokit
Merge pull request #356 from AvadootNachankar/mongokit

Bug Resolved: Editing collections -- [Getting {'$oid': "24-digit-hexstring"} instead of ObjectId()]