Fix method name spelling error

3.0.14

fix spelling error

add "version" property to vagrant plugin

3.0.13

add optional plugin version parameter

change box param: box_provider -> vmprovider

3.0.12

change box_provider to vmprovider

Change "provider" param to "box_provider"

3.0.11

switch parameter name from "provider" to "box_provider" to avoid rese…

Add ability to specify box provider

This adds ability to specify a provider back in but as an explicit param instead of being parsed out of the resource name

Only add boxes that do not already exist

3.0.9

only add box if it does not already exist

Remove deprecated "--provider" argument

3.0.8

remove "--provider" argument that is not used in vagrant >= 1.5