Current head switches on +indy before 1.7update14

Hi there,

it seems that the current head will switch on indy by default, even for current & older jvms:

```
$ ruby -v
jruby 1.7.3.dev (1.9.3p327) 2013-02-10 0a868ab on Java HotSpot(TM) 64-Bit Server VM 1.7.0_13-b20 +indy [darwin-x86_64]
```

same happens for u9
