Statically link FSharp.PowerPack.Metadata

```
This will increase the size of the resulting Unquote assembly by about 2mb, but 
will remove any dependency on the PowerPack (having also eliminated our 
dependency on FSharp.PowerPack.Linq by implementing our own evaluation engine).
```

Original issue reported on code.google.com by `stephen....@gmail.com` on 7 Jul 2011 at 3:55
