Nested packages don't work correctly, custom options don't parse.

[xaviershay]

Not really sure where to put this. I made some commits against ruby-protobuf, which seems to have a similar compiler as this project. This isn't quite ready for a pull request, but wanted to link it up some fixes to save anyone reinventing it:

https://github.com/xaviershay/ruby-protobuf/compare/fixes

[localshred]

Thanks for the report. I've rewritten the compiler to inherit from libprotoc which should solve this issue. I've explicitly left out custom options for the time being, but will be adding support for them in a few weeks. I'll keep this open to remind me of the custom opts.

[localshred]

Though I said otherwise, closing this issue. I'll make a new issue for a feature to support custom options.