add request line callback
Add :multipart-callback to make-parser.
merge conflicts
Export ll-multipart-parser-state.
rename request-line callback to first-line
call :first-line callback when response reasone phrase read
Merge branch 'request-line-callback' of git://github.com/deadtrickster/fast-http into deadtrickster-request-line-callback
Merge branch 'deadtrickster-request-line-callback'
Merge branch 'master' of github.com:fukamachi/fast-http