Fix PHPdoc in user_ldap

Use JS as content-type due to mimesniffing

Add one more LOWER. 

Type hinting fixes

Fix javascript error in calendar app

remove duplication of header and 'header-right' element, also ellipsize when too wide

Various fixes

videos which are shorter then 5 seconds will now get a proper thumbnail ...

Move security headers

Fix login fields

Fix owncloud/calendar#409
If you haven't allowed to share items per email the element "email" will never appear and you will get a null exception.

License: WTFPL

fix error display on smaller screens, fix #8090

Expiration date is hidden smoothly

correct LDAP user count on setup with many users (occ user:report)

using scrutinizer patch

using scrutinizer patch

Added the ability to Drag and Drop folders [chrome]