Fix #8 now unit test temporary files are removed

tests/ttail_init_logfile.c

 	ck_assert(ttail->logfile_name != NULL);
 	ck_assert_str_eq(ttail->logfile_name[0], fname);
 	ck_assert(ttail->logfile[0] != NULL);
+	unlink(fname);
 	free(fname);
 }
 END_TEST
 	ck_assert(ttail->logfile_name != NULL);
 	ck_assert_str_eq(ttail->logfile_name[0], fname);
 	ck_assert(ttail->logfile[0] != NULL);
+	unlink(fname);
 	free(fname);
 }
 END_TEST
 	}
 	for(i=0; i<20; i++)
 	{
+		unlink(fname[i]);
 		free(fname[i]);
 	}
 }