extended tags-input width to avoid cut-off
Merge pull request #504 from emmairwin/bug964467

Extended tags-input width to avoid cut-off
[#960339] Upload images via file uploader
[#983274] refactor popcorn wrapper, it no longer needs to wait for modules, check media types, or create elements unique to the media type because now we use require, mediatypes util, and popcorn.smart
[#980905] Ensure we save urls as all lowercase