tests: removed --- LAST from t/sanity.t which was added by accident.
bugfix: segmentation fault might happen in ngx_destroy_pool when debug logging was enabled in the nginx build. thanks buddy-ekb for the report in #21.
tests: fixed the test case indexes in output.t.
fixed coding style around labels.
bugfix: fixed compilation error with nginx 1.7.5+ because nginx 1.7.5+ changes the API in the events subsystem.