-x11runas(): let the function check for X11 -added decho() "debug-echo" function for debugging only messages -added rvecho() "retval echo" function to print retvals on quiet mode -support quiet mode in mecho() -make use of error echo function eecho() -make use of debug echo function decho() -make use of retval echo function rvecho() -fixed a typo in path_not_empty() function