utf8 routines in go; a start.

also:
	* parse flags in testing.Main.
	* add make test in src/lib.

R=r
DELTA=323  (323 added, 0 deleted, 0 changed)
OCL=19831
CL=19850

src/lib/testing.go

@@ -83,6 +83,7 @@ func TRunner(t *T, test *Test) {
 }
 
 export func Main(tests *[]Test) {
+	flag.Parse();
 	ok := true;
 	if len(tests) == 0 {
 		println("gotest: warning: no tests to run");