adding art and site commands. Updating auth, sites, cli
Adding more commands and Updating terminus_command class
Fixing site and env documentation and terminus_requests calls
Adding/updating Terminus commands
add that man-params template whose absence raises those errors
quiet a "parse error: parse error" error on work-in-progress organizations commands
spelling and documentation
fix composer file descriptions
increment to v0.0.3-alpha
Merge pull request #8 from pantheon-systems/stovak

Added art, site and environment commands; better docs