[keycloak-dev] Supported environments

For 1.2.0.Final the server should be deployable to: * WildFly 8.2.0.Final * EAP 6.4.0.GA After 1.2.0.Final we should move on to WildFly 9.0.0.Final (once it's released). As APIs has changed, and there's also new features in WF 9 we can leverage, the cleanest way to do this is to drop support for deploying to EAP 6.4.0.GA. With regards to adapters what versions should we support: * AS7 - can we drop this? * WildFly - only last (9.0.0.Final) or two last (8.2.0.Final and 9.0.0.Final)? * EAP - only last (6.4), two last (6.3, 6.4) or three last (6.2, 6.3, 6.4)?