VE-533: re-style search results label.
Fix bug in ve.ce.WikiaVideoNode.js
Fix bug in WikiaMediaInsertDialog
VE-533: add play button to video in media item detail page.
VE-533: parens around conditionals.
VE-533: define both vars on same line.
VE-533: remove ve-label mixins.
Merge branch 've-sprint-5' into VE-533

Conflicts:
	extensions/VisualEditor/wikia/modules/ve/ui/dialogs/ve.ui.WikiaMediaInsertDialog.js
	extensions/VisualEditor/wikia/modules/ve/ui/styles/ve.ui.WikiaMediaInsertDialog.scss
VE-533 updating usage of play button css
i18n
removing unnecessary vendor prefixes
VE-533: cleanup.
VE-533: refactor video overlay in item detail page.
VE-533: cleanup and nicer image loading visuals.
VE-533: cleanup; linting; rename VideoThumbnail.scss -> video-thumbnail.scss
VE-533: remove cursor for media item images.
Merge pull request #1898 from Wikia/VE-533

VE-533 / VE-534: re-style search results, add play button to videos in media item detail page