corrected routes DSL

api v1 - restapi renamed to apipie

api v1 - Users controller and tests

- split api routes to separate routes file
- better detection of permission failure in model
- fix ApiConstraints
- catch bad routes in api and return json
- render home#index links from restapi
- fixed resource params recognition

split api routes to separate routes file

api v1 - render errors with rabl

better detection of permission failure in model
fix ApiConstraints
catch bad routes in api and return json