typo
Refactor DATA writing from Handlers in prep for more flow control work.
Lowercased error messages
Merge pull request #16 from gbbr/102-convention-logs

Lowercased error messages
Add TODO about cutting down more goroutines in the future.
Merge branch 'master' of github.com:bradfitz/http2
Fix tests broken by rc227e9c from #16
Remove redundant *serverConn from requestBody.

Already there via the *stream.
Rename dataWriteRequest to dataWriteParams, move to http2.go with goAwayParams