Remove internal Berkshelf workflow.
Remove sudo cookbook dependency.
Swap in provisionerless Vagrant boxes.
Handle Chef and cookbook installations via Vagrant plugins.
Bump Riak cookbook to v2.1.0.
Make port forwarding section more concise.
Bumped riak-cs-create-admin-user cookbook to version v0.3.1.
Merge pull request #25 from basho/hc-vagrant-plugins

Remove internal Berkshelf workflow and other things...