[sharing] fix mail notification

Give a better error message for external shares with self-signed ssl certificates

in order to prevent false-positives on the code checker - exec and eval ...

ascii typo

file actions improved error handling

Close open file handles in files library

in order to prevent false-positives on the code checker - exec and eval will not longer be grepped for

Kill filesync.php in files/appinfo

Close file handle if exception occurs in image class

Cast file id's to int so we can compare them properly

Load authentication backends before tryBasicAuth

* ref comment: https://github.com/owncloud/core/issues/10392#issuecomment-52050567

ref #10392

ref #10392

don't clean up the test environment if a data provider was finished

[encryption] support aes 256

Fix Tar support for php >=5.5

fixes from git push force

Return the proper owner for home storages

Fix alert text

Transifex suggestion by mnestis

Fix issue when no apps are enabled

setting and checking default_charset in php.ini to be UTF-8

Properly initialize $apps array

remove 'no people found' entry in share dialog