Bump and update README

Author: guidograzioli

galaxy.yml

@@ -1,6 +1,6 @@
 namespace: middleware_automation
 name: keycloak
-version: "0.1.5"
+version: "0.1.6"
 readme: README.md
 authors:
   - Romain Pelisse <[email protected]>

roles/keycloak/README.md

@@ -19,15 +19,16 @@ Role Defaults
 | Variable | Description | Default |
 |:---------|:------------|:---------|
 |`keycloak_ha_enabled`| Enable auto configuration for database backend, clustering and remote caches on infinispan | `False` |
-|`keycloak_db_enabled`| Enable auto configuration for database backend | `True` if keycloak_ha_enabled is True, else `False` |
+|`keycloak_db_enabled`| Enable auto configuration for database backend | `True` if `keycloak_ha_enabled` is True, else `False` |
 |`keycloak_admin_user`| Administration console user account | `admin` |
 |`keycloak_bind_address`| Address for binding service ports | `0.0.0.0` |
 |`keycloak_host`| hostname | `localhost` |
 |`keycloak_http_port`| HTTP port | `8080` |
 |`keycloak_https_port`| TLS HTTP port | `8443` |
 |`keycloak_management_http_port`| Management port | `9990` |
 |`keycloak_management_https_port`| TLS management port | `9993` |
-|`keycloak_java_opts`| Additional JVM options | `-Xms1024m -Xmx20480m -XX:MaxPermSize=768m` |
+|`keycloak_java_opts`| Additional JVM options | `-Xms1024m -Xmx2048m` |
+|`keycloak_prefer_ipv4`| Prefer IPv4 stack and addresses for port binding | `True` |
 |`jvm_package`| RHEL java package runtime | `java-1.8.0-openjdk-devel` |