ngx_mruby v1.8.9
- Update mruby
- Add Dockerfile.onbuild for docker users' convenience
- Suport MRUBY_LDFLAGS_BEFORE_LIBS
- Add nginx some modules for the docker image
- Doesn't run
make build_mruby
inmake generate_gems_config
- Fix memory leak when ngx_mruby raise error and return 5xx status code