[RedirectLoginHelper] Remove code duplication and fix access token expires
Make AccessToken serializable
Merge pull request #152 from yguedidi/redirect-login-duplication

[RedirectLoginHelper] Remove code duplication
[AccessToken] Add isExpired function
Merge pull request #154 from yguedidi/better-access-token

AccessToken additions
First step to refactor response/request
Refactor response/request