GUACAMOLE-422: Update documentation and style; tweaks to GuacamoleProtocolVersion implementation.

guacamole/src/main/java/org/apache/guacamole/tunnel/TunnelRequest.java

@@ -372,11 +372,11 @@ public abstract class TunnelRequest {
     }
     
     /**
-     * Returns the value of the timezone parameter declared within the
-     * tunnel request.
+     * Returns the tz database value of the timezone declared by the client
+     * within the tunnel request.
      * 
      * @return 
-     *     The string value of the timezone parameter as reported by
+     *     The tz database value of the timezone parameter as reported by
      *     the client.
      */
     public String getTimezone() {

guacamole/src/main/webapp/app/settings/services/preferenceService.js

@@ -104,7 +104,8 @@ angular.module('settings').provider('preferenceService', ['$injector',
      * by the JSTZ timezone library.
      * 
      * @returns String
-     *     The name of the currently-detected timezone.
+     *     The name of the currently-detected timezone in tz database
+     *     format.
      */
     var getDetectedTimezone = function getDetectedTimezone() {
         return jstz.determine().name();