in file.m, the open method now handles wildcards, compressed and mat files automatically; changed warning to str.say(WARNING; fixed check in list of function handles in the unwrap method
in file.m, the open method now handles wildcards, compressed and mat files automatically; changed warning to str.say(WARNING; fixed check in list of function handles in the unwrap method

jgte/orb,jgte/orb,jgte/orb,jgte/orb,jgte/orb