Fix warning about redundant loading of VERSION
Fix nested namespaces not working
Allow for empty routes without a path

For example GET, POST, etc on a resource defined as a namespace
Add support for setting cookies in responses
Make cookies from backend responses available
Stop passing frontend content length to backend
Return content type in the frontend response
Support shorthand setting of success status

For example:

    response do
      status 204
    end
Simplify unhandled failure block handling
Add support for helper blocks

This allows defining helper methods to cut down on duplication