Refactor of user management

Replacement for jquery.dialog to fit better with ownCloud design.

initialize the session earlier

Reworked background job system.

In cases where smb4php returns false of an empty array stat/( has to ret...

Speed up octemplate rendering.

isinternetconnectionworking should return false if OC_Config::getValue("has_internet_connection") is false

adding PHPDoc comment for $user within the hooks callbacks
fixing PHPDoc comment on isLoggedIn()

Fixes #3466 because the test method of external filesystems uses stat() to detect if the given parameters are okay.

Changes to 3rdparty are necessary as well:
https://github.com/owncloud/3rdparty/pull/33

fix problems with german "Umlaut" in folder name

user should set into session before postLogin hook otherwise it will break not only the files_encryption app

Fix ldap sqlite n js