Rough draft of asyncifier
App side now asynchronously runs knife and redirects to 'polling' pages
Client and version bump to 1.0. BREAKING CHANGES

* App now sends a '550' when the knife run fails, since 510 is already
  an unofficial thing
* Breaking changes to the old client
Fixup! Missed a file
Merge pull request #1 from christian-blades-cb/async

Async requests and a client update