- added integration/keycloak/wf8-subsystem
- added distribution/adapters/wf8-adapter containing wf8-modules, and wf8-adapter-zip
- there's no dependency on distribution/modules
- subsystem is installed by unzipping keycloak-wf8-adapter-dist.zip to Wildfly 8.2.0.Final, and adding <extension-module>org.keycloak.keycloak-wf8-subsystem</extension-module> to standalone.xml
