Merge pull request #1858 from VinRudramurthy/release-6.6.3.a1

Issue rectified with display of teacher tips on collection player.
Disabled Mixpanel....
Merge pull request #1872 from anilgooru/release-6.6.3.a1

Disabled Mixpanel....
deprecated update collection and resource view count API.
Merge pull request #1890 from shivalinga/release-6.6.3.a1

deprecated  update collection and resource view count API.
Folders: Added UI for folder reorder...