FIX: coverty scan reveals some resourceleaks and overruns, which is supposed to be fixed now.

/armsrc/des.c   overflow 7 instead of 6
/client/cmdlfhitag.c  overflows traclen
/client/util.c   sprint_bin_break  overflows.
/client/cmdhficlass.c   need to free memory after malloc.

ADD:  RotateRight macro in util.h

client/cmdhficlass.c

@@ -409,6 +409,7 @@ int CmdHFiClassDecrypt(const char *Cmd) {
 
 	saveFile(outfilename,"bin", decrypted, blocknum*8);
 
+	free(decrypted);
 	return 0;
 }