GUACAMOLE-538: Update JDBC extension to recognize AUDIT permissions.

extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-mysql/schema/001-create-schema.sql

@@ -459,6 +459,7 @@ CREATE TABLE `guacamole_system_permission` (
                     'CREATE_SHARING_PROFILE',
                     'CREATE_USER',
                     'CREATE_USER_GROUP',
+                    'AUDIT',
                     'ADMINISTER') NOT NULL,
 
   PRIMARY KEY (`entity_id`,`permission`),

extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-mysql/schema/upgrade/upgrade-pre-1.6.0.sql

@@ -0,0 +1,31 @@
+--
+-- Licensed to the Apache Software Foundation (ASF) under one
+-- or more contributor license agreements.  See the NOTICE file
+-- distributed with this work for additional information
+-- regarding copyright ownership.  The ASF licenses this file
+-- to you under the Apache License, Version 2.0 (the
+-- "License"); you may not use this file except in compliance
+-- with the License.  You may obtain a copy of the License at
+--
+--   http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing,
+-- software distributed under the License is distributed on an
+-- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+-- KIND, either express or implied.  See the License for the
+-- specific language governing permissions and limitations
+-- under the License.
+--
+
+--
+-- Add new system-level permission
+--
+
+ALTER TABLE `guacamole_system_permission`
+    MODIFY `permission` enum('CREATE_CONNECTION',
+                             'CREATE_CONNECTION_GROUP',
+                             'CREATE_SHARING_PROFILE',
+                             'CREATE_USER',
+                             'CREATE_USER_GROUP',
+                             'AUDIT',
+                             'ADMINISTER') NOT NULL;