Token response token_type value should be parsed case-insensitively

[Jacob Childress]

The SDK cannot successfully parse a successful token response from an authorization server if the 'token_type' value is 'bearer' instead of 'Bearer'. In such cases, a ParseException will be thrown by BearerAccessToken.parse(...).

Both 'Bearer' and 'bearer' should be treated as valid values for 'token_type', as token type values are case insensitive. See RFC 6479, section 5.1:

token_type REQUIRED. The type of the token issued as described in Section 7.1. Value is case insensitive.

[Vladimir Dzhuvinov]

Thanks for spotting this!

[Vladimir Dzhuvinov]

Fixed in commit 10967e6.