fileSignature.m: cleanup
fileSignature.m: cleanup

andersbll/vlbenchmarks,vlfeat/vlbenchmarks,CVML/vlbenchmarks,andersbll/vlbenchmarks,vlfeat/vlbenchmarks,CVML/vlbenchmarks,CVML/vlbenchmarks,vlfeat/vlbenchmarks,andersbll/vlbenchmarks,andersbll/vlbenchmarks