Merge pull request #784 from stianst/master

KEYCLOAK-710 Ignore missing roles in access-code
KEYCLOAK-759 Added adapter clustering to admin console
Merge pull request #786 from mposolda/dynamic-adapter-registration

KEYCLOAK-759 Added adapter clustering to admin console
Merge pull request #787 from stianst/master

KEYCLOAK-711 HttpServletReqest.logout() does not work with relative URI