A recent change that prevents reshare permission changes to delete group
share children had the side-effect of also preventing group share
children deletion when it needed to be done.

This fix adds an extra flag to isolate the "reshare permission change"
deletion case and keep the other ones as they were before, not only to
fix the regression but also fix other potential regressions in code that
uses this method.

Also updated the comment because now Helper::delete() is no longer
limited to reshares but also applies to group share children.

check if mimetype is set - fixes #13452

Drop the hide and show of new users in user list

Remove stripslashes() from newfolder.php

[trashbin] replace hook with storage wrapper

Fix getItemSharedWithUser for groups

LDAP Wizared: update user or group count only, when the multiselect is closed

Fix filtering for users when $gid is empty

Reuse the array key of mimetypes

fix typo - caused by 3d997e8c

Fix exif orientation for flipped images

fixes #13363

Links:
 * http://www.daveperrett.com/articles/2012/07/28/exif-orientation-handling-is-a-ghetto/
 * Example data: https://github.com/recurser/exif-orientation-examples

fix safari rename button positioning #11348

fix unlocalized favorites browser title and alttext

Previously when $gid was empty the users were not filtered at all. Rendering the search function in the user management pretty useless.

Fixes itself

Skip stray part files during initial encryption

This function is called a lot of times and was really slow before due to not reusing the same array.

Previously when it was called 500'000 times it took about 2seconds, now we're down to 0.2 seconds on my local machine.

Ref https://github.com/owncloud/core/issues/13434

replace line breaks in the app description by spaces - fixes #13315

minimum browser window width ≈ 1280px

as expected with inline-block span

Fixes shifted rename field

* causes the first load after the initial load to hide some users in the viewport
  and showing them again, but with a scrolled up viewport
* causes higher load for nearly never visible effects
* fixes #12962

Fixed SQL query for whenever a user has more than one group.
Added missing $owner where clause for group lookup.
Added unit tests for the group cases.

add icon for Provisioning API

Fix preview route for trashbin