Refactored gem to use encrypted data enbedded in the token.
Updated documentation.
Reverted back to old oauth2_token_data
Incremented version.
Removed OAuth2 dependency.
SimpleSecrets has been published to RubyGems, so the GemSpec declaration is all we need, now.  Also added Rack-Test to Gemfile; I must have had it installed locally.
Merge pull request #4 from octanner/encrypted_token

Encrypted token