Merge pull request #1816 from Wikia/VE-471

VE-471: Fix panel layout
Perform checkPermissions and verifyUpload on videos as well
Added qqq for i18n
VE-472: add file detail pages for cart items.
VE-472: create WikiaMediaPageWidget; refactor and cleanup logic in dialog.
Address feedback from code review
Merge pull request #1841 from Wikia/apitempupload

MediaWiki API for "temporary" upload
VE-528: Uploading temporary files
DAR-2521 | WAM redirects - added unit tests
Merge branch 'DAR-2402' of github.com:Wikia/app into DAR-2402
DAR-2107: Removed background-align params from code. It will be set in SCSS
DAR-2415 chat modals code cleanup
updated SpecialStyleguide.js so it does not have JSHint issues
DAR-2107: Removed one more background-align param
DAR-2395: Checked if background image width is proper to split image
DAR-2395: Added tooltip with requirements to split background image
DAR-2400: Added defualt background middle color for other themes
JSHint cleanup
DAR-2395: Disable dynamic option when there is no background
JSHint small change