HipByte/RubyMotion — pull request #11 by satococoa (2012-06-17 19:00:57+00:00)
Title: clear $RUBYOPT when calling gen_bridge_metadata

When I use bundler, calling `gen_bridge_metadata` in a rake task(with `sh` method) causes errors like below.

```
Could not find foo-x.xx.x in any of the sources
Run `bundle install` to install missing gems.
```

Because `gen_bridge_metadata` is a ruby script and Bundler sets a environment variable `RUBYOPT`, this causes the problem.

So, I needed to clear `RUBYOPT` when I call `gen_bridge_metadata` temporary.