Add a CLI command that deletes an LDAP config

With this change LDAP configurations can be managed completely from
the command line.
rework getFileSize
small fix
ok; still some bugs that had to be fixed
bugfixes
small fix
adding missing email address for principal

* fix #8515
* add mail only if it exists
Only mount the storages for the user once
Fix the "addHeader($tag, $attributes, $text)" methods to not ignore the $text parameter

Also support closing tags with no text content given

Conflicts:
	lib/private/template.php
Reset the users setup after clearing mounts
initialisation of cipher
add dataresponse

fix docstrings

adjust copyright date

another copyright date update

another header update

implement third headers argument, fix indention, fix docstrings

fix docstrings
get the source path and owner in a pre hook and the target path and owner in a
post hook
Fix typo
on xp'ed mode and switching configurations: save raw mode instead of toggling filter mode in tabs since their status is unknown and dealt with by the Wizard. Fixes #11848
fix style of generated documentation
Close session for files_trashbin

When restoring huge folders the interface will be unresponsive otherwise
Allow any outgoing XHR connections

Quickfix for https://github.com/owncloud/core/issues/11064
[tx-robot] updated from transifex
Fix stupid copy paste fail

...