update encryption doc link

I don't know how we missed to update this :/

update ldap doc link
Merge pull request #11141 from owncloud/update_encrytionlink

update encryption doc link
Reenable file proxy when renaming between mount points

When moving a folder into another mount point, $renamedFiles is empty
because that goes over a different mechanism.

In such case, this fix makes sure that the file proxy is reenable to
avoid breaking the subsequent files that are being moved.
Match more URL fragments

Fixes https://github.com/owncloud/core/pull/11009#issuecomment-56103341
[tx-robot] updated from transifex
create backup from all keys before recovery
make sure that we really catch the files folder only
Merge pull request #10958 from owncloud/db-ilike

Introduce cross-db ILIKE
Merge pull request #11163 from owncloud/check-for-updates-between-major-versions

Prevent updates between multiple major versions
Merge pull request #11119 from owncloud/removeOldUpgradeRoutines

Remove old upgrade routines
Merge pull request #11142 from owncloud/fix-windows

Resolves cache tests failing if the directory length is longer than 64
Throw error in showPreview instead the constructor

This function is also used in a way such as:

```
	$preview = new \OC\Preview(\OC_User::getUser(), 'files');
	$info = \OC\Files\Filesystem::getFileInfo($file);
	if (!$always and !$preview->isAvailable($info)) {
		\OC_Response::setStatus(404);
	} else {
		$preview->setFile($file);
		$preview->setMaxX($maxX);
		$preview->setMaxY($maxY);
		$preview->setScalingUp($scalingUp);
		$preview->setKeepAspect($keepAspect);
	}
```

Which won't work anymore since `setFile` is used instead of passing the file in the constructor. Fixes a regression in master.
Merge pull request #11158 from owncloud/fix_basic_auth

Move BasicAuth check to isLoggedIn
Merge pull request #11171 from owncloud/fix-route

Match more URL fragments
Merge pull request #11104 from owncloud/enc_create_backup_on_recovery

[encryption] create backup from all keys before recovery
Merge pull request #10968 from owncloud/admin-groupsselect2

Use select2 for the groups excluded from sharing in admin page
Add myself as author
fix typo
Added extra check to avoid deleting key folders

Whenever a delete operation is called twice in a row, it could happen
that the first call already deleted the file.

The second call would return an empty $ownerPath because the file does
not exist. That empty $ownerPath would run the key deletion operation on
the wrong path.

This fix adds checks in many places to make sure we don't use $ownerPath
when it's empty or null.
Merge pull request #11184 from owncloud/typo

fix typo. closes #11132