Code review comment for lp:~vanvugt/mir/libprotobuf-unlite

1. It would be better if we simply stopped loading libprotobuf-lite into global symbol space with "dlopen(info.dli_fname, RTLD_NOW | RTLD_NOLOAD | RTLD_GLOBAL);". I though Cemil was already working on that?

2. If any of the (current or future) Qt plugins use protobuf-lite then we'll see similar issues with this approach. Have we checked?