Is it possible to export organic groups global roles using features? I like to keep functionality that I build in features, both for version control and deployment. 

I'm new to using Organic Groups and I wanted to know if it's possible to add an organic gorups global role to a feature.  I couldn't see any mention of this when I tried to recreate my feature through the UI or drush.
There is a issue for this in the organic groups queue.  features integration for organic groups permissions and roles.  You may also want to install strongarm and see if that helps you store the configuration settings that are stored as variables.