Merge pull request #1849 from owncloud/mount_users_home

mount users home before write/read file to it, necessary to deal with external homes [master]

apps/files_versions/lib/versions.php

@@ -37,6 +37,7 @@ class Storage {
 
 	private static function getUidAndFilename($filename) {
 		$uid = \OC\Files\Filesystem::getOwner($filename);
+		\OC\Files\Filesystem::initMountPoints($uid);
 		if ( $uid != \OCP\User::getUser() ) {
 			$info = \OC\Files\Filesystem::getFileInfo($filename);
 			$ownerView = new \OC\Files\View('/'.$uid.'/files');