Start refactoring CLI
Create Cmd object for mapping CLI commands to Jake commands
Finish wiring up one-off gen and jake tasks
Move usage into text file
Moved usage into text-file
Better errors for unknown CLI commands
Merge branch 'master' into cli-refactor
Check for Jake/gen commands sooner, allow them to parse options
Merge branch 'master' into cli-refactor
Merge branch 'master' into cli-refactor
Fix Cmd tests