Various permission set fixes.
    
    Fix various interfaces to use permission sets for compatiblity with open permission.
    
    Also use other permission sets where possible just because applicable permissions sets are available and the use of permission sets is encourage generally for compatibility.
    
    The use of exec_file_perms permission set may be not be a good idea though since it may be a bit too coarse.
    
    Signed-off-by: Dominick Grift <domg472@gmail.com>
    Signed-off-by: Chris PeBenito <cpebenito@tresys.com>