square/okhttp — pull request #771 by adriancole (2014-04-26 18:13:56+00:00)
Title: Add --frames arg to okcurl, which sends HTTP/2 frame metadata to STDERR.

Also reworks SpdyServer to also work with HTTP/2.

```bash
$ okhttp/okcurl/target/okcurl-2.0.0-SNAPSHOT-jar-with-dependencies.jar --frames -k https://localhost:8888/ >/dev/null
>> CONNECTION 505249202a20485454502f322e300d0a0d0a534d0d0a0d0a
>> 0x00000000 5 SETTINGS
<< 0x00000000 0 SETTINGS ACK
>> 0x00000003 60 HEADERS END_STREAM|END_HEADERS
<< 0x00000003 50 HEADERS END_HEADERS
<< 0x00000003 1468 DATA
<< 0x00000003 0 DATA END_STREAM
>> 0x00000000 8 GOAWAY
```