VID-1440 better ux for loading of right rail videos module
VID-1440 using css class 'hidden' to hide and show videos module components
VID-1440 chaining method and adding kibana logging
Merge pull request #3028 from Wikia/VID-1440

Vid 1440
Merge branch 'VideoSprint43' into VID-1437

Conflicts:
	extensions/wikia/VideosModule/templates/mustache/rail.mustache
	skins/oasis/css/modules/VideosModule.scss