- reworking the builder pattern.  seeing if we can't make a simpler interface for others
- removed #Proxy as a top level.  the intent is that we'll build
  this in directly to the #Route
- route now constructs the proxy instance
- refactored filters to support transition to HandlerFunc from Handler
- continuing to improve code coverage
- merged auth and sessions packages into the same package, sessions
- removed unused package, matcher
- removed unused package, filter
- removed unused classes
- began construction of a replacement conf
- cleaned breaking build
- updated examples in documentation