Use regular knife in cukes
Make :info a required formatter type
Reload Berkshelf::Config on each run

Because we are now running in memory, we need to force a reload of the config on each cucumber step when we write out a custom Berkshelf config file. Otherwise, Berkshelf::Config.instance still exists and only the first created value is used.
Switch to built-in runner for apply_command feature
Switch to built-in runner for config_command feature
Run configure commands in a subprocess still
Move Berksfile features into Berksfile steps
Why hello ultra-fast cookbook_command feature :)
And, not given in contingent_command.feature
Speed up groups_install feature
5 seconds for lockfile specs - I'll take it
Spawn on an open command
Speed up update_command features
< 20s to run all the upload_command features
Speed up apply command feature
Whoops, can't put a comma there
Use new CLI and runner for fastness
Fix open feature
Remove test generators
Allow the user to programitcally set the berkshelf_path