Added country meta to upgrade routine
* Forthcoming country checkout localization pr will be able to change the label for a region to something appropriate to the country selected.  So for the USA we state will show, and Canada can show province, other countries can be added.  Now my Canadian friends can stop yelling at me when it does not show the right label.

*Also added some phpdoc headers
Changed region meta key from "region_is_called" to "region_label"
Merge pull request #1093 from JeffPyeBrook/pr-country-meta-data-init

Added country meta to upgrade routine