Use addCommands().
Remove deprecated TableHelper.
Minor comments cleanup.
Test on HHVM.
Auto-complete file path arguments and options.
Merge pull request #164 from pjcdawkins/path-autocompletion

Auto-complete path arguments
Improve projects/environments refresh experience.
Merge pull request #166 from pjcdawkins/caching-ux-projects-environments

Improve projects/environments refresh experience.
Merge branch 'development'