JWTAuth::getToken() signature change is not yet documented

[itsnotvalid]

Subject of the issue

Since milestone 1.0.0-rc.2, on commit 7c1d58e there is additional changes to the values returned by JWTAuth::getToken(). This function is suggested to be used in the 0.5.0 doc (wiki: https://github.com/tymondesigns/jwt-auth/wiki/Authentication ) as a way to obtain the token.

However, it's now returning false instead of null.

Please document this in breaking changes so others unlike me would be notified of the changes. Thanks.