Cannot get working in chrome reliably due to conflicting handling of
events and drag+drop API. Getting attachment drop working breaks other
parts of TinyMCE.
Implementing current work as should still work for MD editor and within
FireFox.
Related to #1460
Currently fighting between sortable and tinymce mechanisms which prevent
this working due to the different events stopping the drop event while
needing the dragover for cursor placement.
- Created new dropzone component.
- Added standard component event system using custom DOM events.
- Added tabs component.
- Added ajax-delete-row component.
- Instead of user name.
- Due to issues with advanced charts like emoji zero-width-joiners.
- Could also have security concerns on untrusted instances with certain
webserver config due to double extension possibilities.
Closes#1993
Thumbnail generation would sometimes create a file larger than the
original, if the original was already well optimized, therefore making
the thumbnail counter-productive. This change compares the sizes of the
original and the generated thumbnail, and uses the smaller of the two if
the thumbnail does not change the aspect ratio of the image.
Fixes#1751
Still uses gravatar as a default.
Updated URL placeholders to follow LDAP format.
Potential breaking config change: `GRAVATAR=false` replaced by `AVATAR_URL=false`
Builds upon #1111
