* Used on a Spring Web MVC controller to expose it as a template. A template is either used to render a page or a
 * component.
 * <p/>
 * The title of the template is set with this annotation while the description is set using
 * {@link info.magnolia.module.blossom.annotation.TemplateDescription}.
 * <p/>
 * A component is added to a page using a dialog. A controller that uses this annotation automatically becomes a factory
 * for its dialog. This dialog is automatically assigned an id and you do not need to add the
 * {@link info.magnolia.module.blossom.annotation.DialogFactory} annotation. The functionality for creating the dialog
 * is identical to the functionality of classes that use {@link info.magnolia.module.blossom.annotation.DialogFactory}.
 * More specifically you can use {@link TabFactory}, {@link TabValidator}, {@link DialogValidator} and {@link TabOrder}.
 * <p/>
 * If you prefer using a dialog created by a {@link DialogFactory} or one configured in Magnolia you can override this
 * behaviour by setting the 'dialog' field.
 * <p/>
 * The class will also be scanned for methods annotated with {@link DialogFactory}. This makes it possible to declare
 * dialogs in the same template that they're used for.
 * <p/>
 * It is possible to restrict on which pages a template can be used by using the
 * {@link info.magnolia.module.blossom.annotation.Available} annotation.
 * <p/>
 * You can use {@link info.magnolia.module.blossom.annotation.I18nBasename} to specify which resource bundle should be
 * used for localization of the template's title and description.
 * <p/>
 * For example this template will be exposed with the id "mainTemplate":
 * <pre>
 * &#64;Controller
 * &#64;Template(title = "Main", id = "moduleName:pages/main")
 * public class MainTemplate {
 *   &#64;RequestMapping("/mainTemplate")
 *   public String render() {
 *     return "mainTemplate.jsp";
 *   }
 *   &#64;TabFactory("Content")
 *   public void contentTab(TabBuilder tab) {
 *     tab.addFckEditor("body", "Text", "Text");
 *     tab.addFile("image", "Image", "Image");
 *   }
 * }
 * </pre>