[#112,creator][m]: switch to using datapackage-init via its browserify'd bundle.

* Get rid of create API as a) why use this if you have dpm b) no sensible way for this to work atm (how can you post file contents, what would be API for fields etc)
* Change form to run of datapackage-init browserify'd bundle.js
[theme][xs]: remove feedback link on RHS.