course_create_edit() function modified to save/update NUSSD/Available Course.
New fields within appropriate tabs added.
Missing types (int & float) added along with missed attributes for corresponding html-widget.
jsonify() template-filter added that parses python value into json-type (useful in converting python list/dict into javascript/json object).
status update implemented; code modified to updated attribute_set & compare list of dictionaries
Merge branch 'mongokit' of https://github.com/gnowledge/gstudio into mongokit
Bug resolved: Indentation problem resolved.
Bug resolved: Except for False (genuine value), other NoneType values checked in if block of create_gattribute().
Merge pull request #830 from AvadootNachankar/mongokit

MIS updates - NUSSD/Available Course Registartion Implementation & Other enhancements