moving pipeline response to koa style
turned the response into a generator
removed app param from router initialisation
turned the response querier into a generator
Merge remote-tracking branch 'origin/master' into koa-pipeline

* origin/master:
  moved test to this repo for email validation
  added generic email validation
  remove global app routing

Conflicts:
	index.js
set response.status after pipeline completes
return response not undefined! :P
added susccess logging
Merge branch 'koa-pipeline' of github.com:super-useful/su-apiserver into koa-pipeline
Merge pull request #2 from super-useful/koa-pipeline

Koa pipeline