Added Scope class to handle parsing of scopes in request
Renamed parse_scope to parse
Handle cases where scope needs to be send back to client
Added handling of scope in Authorization Code and Implicit grants
Pass scopes to adapters
Append scope to the redirect url if needed
Make use of scope in Resource Owner grant
Pass scope to access token store
Make adapters in examples use scope
Use factory method to create instance of Scope in Grant classes
Merge pull request #2 from wndhydrnt/scope

Add support for "scope" parameter