Change submodule repo to my personal fork.
Change submodule repo to my personal fork.

Travis CI is failing with mysterious

```
error: Server does not allow request for unadvertised object 265d5186aca6d8584f7a859417f72b47dbeb12f0
```

scalameta/metadoc,scalameta/metadoc,scalameta/metadoc,scalameta/metadoc