Setting system's default encoding as 'utf-8'
Bug resolved: member_of_names_list() function modified - Look for 'gsystem_type' field only if this key exists
Updated to fill attribute_set & relation_set fields of all existing GSystems.
Merge branch 'mongokit' of https://github.com/gnowledge/gstudio into mongokit
Merge pull request #811 from AvadootNachankar/mongokit

filldb script updated to fill attribute_set & relation_set fields