Merge pull request #192 from anujag/mongokit

Notifications for adding thread and reply
CSS: minor fixes
Merge branch 'mongokit' of https://github.com/gnowledge/gstudio into mongokit
CSS: Make sidebar white for cleaner look
CSS: Improve heading and tab layout of group, file and page dashboards
Merge pull request #195 from planemad/mongokit

UI Updates
Modified forum module with notifications