Deprecate PaperCard

Author: javier-godoy

src/main/java/com/flowingcode/addons/applayout/PaperCard.java

@@ -39,11 +39,12 @@
  * Component that renders a paper-card
  * 
  * @author mlopez
- *
+ * @deprecated This component will be removed in a future version. 
  */
 @SuppressWarnings("serial")
 @HtmlImport("bower_components/paper-card/paper-card.html")
 @Tag("paper-card")
+@Deprecated
 public class PaperCard extends Component implements HasSize, HasStyle, ThemableLayout {
 
     private final Div cardContentDiv = new Div();

src/test/java/com/flowingcode/addons/applayout/DemoView.java

@@ -213,6 +213,7 @@ private MenuItem[] createMenuItems() {
 			};
 	}
 
+	@SuppressWarnings("deprecation")
 	private void showContent(String content) {
 		container.setClassName("");
 		container.removeAll();
@@ -225,6 +226,7 @@ private void showContent(String content) {
 		container.add(pc);
 	}
 
+	@SuppressWarnings("deprecation")
 	private void showHamletContent() { 
 		InputStream in = this.getClass().getClassLoader().getResourceAsStream("hamlet");
 		String text = new BufferedReader(new InputStreamReader(in)).lines().collect(Collectors.joining("\n"));