fix retrievel of group members and cache group members
fix changed variable name
make sure that the notification gets shown again after a second try
improved visual feedback if recovery key gets enabled/disabled
improved visual feedback if recovery key password gets changed
improved visual feedback if user enabled recovery key
fix for issue #10880
Fix file size comparator return value
check if I can create a file at the location
increase whitespace below headings in settings
Merge pull request #11477 from owncloud/improve-heading-whitespace

increase whitespace below headings in settings
Merge pull request #11460 from owncloud/fix-10880

implement case-insensitive search for groups in sharing dialog
Merge pull request #11453 from owncloud/enc_visual_improvements

[encryption] some visual improvements
log exceptions when listing files
fix amazon s3 issues

folder size and mtime is always unknown in s3

more s3 fixes

make rescanDelay of root dir configurable, add on the fly update of legacy storage ids, !isset -> empty when checking strings

reduce number of http calls on remove and rmdir

fix typo
make some storage tests explain what went wrong
strict comparison
files_extern: remove empty Body and ContentLength in Amazon S3 mount

fixes #10501

Conflicts:
	apps/files_external/lib/amazons3.php
extract batchDelete(), better comments
Merge pull request #11471 from brumsoel/master

Fix file size comparator return value