Fixed example
Renamed Action#act to #run_command
Allow Actions to take a block
Allow passing in config options on init
Use host instead of actor
Use stage.host_group
Added ability to do :on_fail blocks
Updated proper remove flag, fixed :no_change criteria
Fixed use of open-uri
Allow for just updating cache, refactored commands, added :no_change criteria for update
Fixed start_time
Added sudoability
Handle failed open calls
Fix to pass the repo to the command
Don't check stdout if failure
Added upgrade command