Update module to 0.1.0

This is a major revision that removes the cludgy shell script formally used
to manage ruby installs. Instead, the  define will use a series
of execs to handle the installation and management of ruby installs.

* Updated rbenv::gem to honor
* Updated rbenv::plugin to honor
* Add requirement for git class (puppetlabs/puppet-git)
* Update tests to actually work
* Add Vagrantfile for smoke testing