Inclusion of KC configuration

This pull request relates to https://github.com/aerogear/aerogear-ios-oauth2/pull/7.

It was exhaustively tested against Keycloak 1.0.4 and https://github.com/corinnekrych/aerogear-backend-cookbook/tree/master/Shoot.

Let me know if I messed things up. After the merge, our documentation will be updated
is this needed ?