Update honeybadger gem
Add :honeybadger_api_key to Config
Fix deprecation warning of Honeybadger

Honeybadger is only used when Config.honeybadger_api_key is set. Related to #108
Merge pull request #109 from tmaier/honey

Update honeybadger
Two phase require: libs then models

This allows the database connection to be customized in a database
initializer.
Merge pull request #110 from interagent/brandur-two-phase

Two phase lib + model require
Use Config in Routes
Add Versioning middleware to Routes

Enable it with the ENV variable VERSIONING set to "true"