first whack at rvm support in vagrant-cachier
adding requires for the rvm files
loading in the rvmdir classes in the plugin file.

This should now work...
minor changelog updates.
renaming rvmdir -> rvm_path
adding rvm installation to the vagrant file
adding rvm info to the docs
Merge pull request #21 from cromulus/rvm_support

Rvm support
Minor tweak to the readme
Install RVM for vagrant user and prevent installation if already installed
v0.2.0
Bump dependencies
Add vagrant-pristine to the mix to ease development
Up version for development
Adds basic chef file_cache_path support.
Prepares development Vagrantfile for Chef's file_cache_path testing.
Adds chef file_cache_path to README.
Merge pull request #14 from patcon/14-chef-file-cache-path

Adds `file_cache_path` support for Chef
Update CHANGELOG.md