fix middleware gif, close #322
Merge pull request #324 from dead-horse/docs

fix middleware gif, close #322
Changed language on readme

"Getting start" sounded off so I updated it to "getting started"
Merge pull request #327 from kylesuss/patch-1

Changed language on readme
fix test for new mime-types
fix err.status invalid lead to uncaughtException
alias request.headers as request.header
Merge pull request #326 from dead-horse/alias-headers

alias request.headers as request.header
do not expose when err.status not valid
Merge pull request #330 from dead-horse/onerror-status

Onerror status
Release 0.9.0
add the ability to pass `props` to `context.throw`
Merge pull request #332 from ianstormtaylor/add/throw-props

add the ability to pass `props` to `context.throw`
add docs for .throw() properties
Merge branch 'master' of ssh://github.com/koajs/koa