Add specs

Update README with detailed needs to use the gem, instructions on how to configure it with a Ruby on Rails application and the schema that is returned to the application from OmniAuth

Update strategy with additional info section information and correct call for protected resource information

Remove old code, include commented placeholders for actual values that will be received, include camel case operation so module can be called as MSUnet

Update site and authorize url for testing Gitlab login with local OAuth server, change user to uid for returned structure

Change version number to include the alpha designation which prevents the gem from installing unless --pre is used