Update to latest biscuit-util package and use Recipe API.
Latest biscuit-utils (Recipe -> Paths)
Various fixes.

* Added restart-server command.
* Fixed error handling and error template.
Refactoring to split out server into Oven for clarity.
Fix generate method, it's a work in process
Update readme
Add -g flag to install instructions.
Change default port to 4000
Handle name change (Biscuit -> Flapjack)