[Bugfix] Make error description detection compliant with OAuth2 The arameter 'error_description' should be also used to detect error message, as in the OAuth2 documentation (http://tools.ietf.org/html/rfc6749#section-4.1.2.1).
[Bugfix] Make error description detection compliant with OAuth2
The arameter 'error_description' should be also used to detect
error message, as in the OAuth2 documentation (http://tools.ietf.org/html/rfc6749#section-4.1.2.1).

Original code by: Olivier Maridat

dmatora/HWIOAuthBundle,dmatora/HWIOAuthBundle,hwi/HWIOAuthBundle