[zfcampus/zf-mvc-auth#11] Save oauth token in AuthenticatedIdentity
Merge pull request #24 from alfaproject/oauth2identity

[zfcampus/zf-mvc-auth#11] Save oauth token in AuthenticatedIdentity
[#24] Added unit test

Validates:

- name is set from token returned from oauth2 verification.
- AuthenticatedIdentity stores full token via "authentication identity".
Merge branch 'hotfix/24'

Close #24