Rebase to current upstream and some fixes:
    
    - Fix the theme (and improve it by a bit)
    
    - Fix the authentication stack
    
    - Don't touch numlock on startup
    
    - Disabled the XDMCP server until it's accepted upstream
    
    - Resolves: #1016902 #1028799 #1031415 #1031745 #1020921 #1008951 #1004621