GUACAMOLE-747: Correct license issues for RAT plugin.

doc/guacamole-branding-example/css/0-font-raleway.css

@@ -1,3 +1,22 @@
+/*
+ * 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.
+ */
+
 @font-face {
     font-family: 'Raleway';
     font-weight: normal;

pom.xml

@@ -118,6 +118,8 @@
                         <exclude>CONTRIBUTING</exclude>
                         <exclude>**/README.md</exclude>
                         <exclude>extensions/**/*</exclude>
+                        <exclude>**/*.json</exclude>
+                        <exclude>doc/**/html/*.html</exclude>
                     </excludes>
                 </configuration>