Upgraded libraries.
Added main.
Refactored providers lib.
Download library ported.
Helpers library removed for now.
Engine ported to coffeescript.
Version bump.
Moved everything to coffeescript but not ported yet.
Re-written virtualbox provider.
Package improvements.
Further improvements on the virtualbox provider.
Provider's shellSpec is now called shell_spec
Port to coffeescript finished with added bootstrap functionalities.
Added doc strings.
Refactored bootstrapping code.
Version bump and library addition.
Fixed typo.
Partual re-write of actions.
Complete re-implementation of all actions.
Version bump.