Prior to this change, when the ruby generator tried to reference an entity that was not part of the same package
(or a direct parent package) and the package contains underscores,
the result would simply uppercase the first character.
It should however uppercase each letter that proceeds an underscore and remove underscores.
i.e.
```
package my_package.service;
import "my_package/data.proto";
service MyService {
rpc Test (data.Request) returns data.Response {}
}
```
Was
```ruby
# ...
rpc :Test, My_package::Data::REquest, My_package::Data::Response
# ...
```
Should be:
```ruby
# ...
rpc :Test, MyPackage::Data::REquest, My_package::Data::Response
# ...
```
ganmacs