Video (vid-193): add description header to video
Video (vid-193): remove description header from template on file page
Video (vid-193): VET - add description header into edit view on file page
Merge branch 'VideoSprint22' into vid-193
Merge pull request #653 from Wikia/vid-193

Vid-193: Add "Description" header back into the edit view as wiki text on the file page
Merge branch 'VideoSprint22' into VideoSprint22-tab-cookies
loading file page assets with assets manager