Fix a few javadoc warnings

Author: carlosame

carte/src/io/sf/carte/chart/ChartList.java

@@ -28,6 +28,8 @@
  * WARNING: This code is nowhere near being complete nor API-stable. Use it at
  * your own risk, and contributions would be welcome.
  * </p>
+ *
+ * @param <T> the type of chart metadata.
  */
 public class ChartList<T extends ChartInfo> extends ArrayList<T> {
 

carte/src/io/sf/carte/chart/ChartRenderer.java

@@ -23,6 +23,7 @@
  * WARNING: This code is nowhere near being complete nor API-stable. Use it at
  * your own risk, and contributions would be welcome.
  * </p>
+ *
  * @param <T> the type of chart metadata.
  */
 public interface ChartRenderer<T extends ChartInfo> {

carte/src/io/sf/carte/chart/SVGChartRenderer.java

@@ -38,6 +38,8 @@
  * WARNING: This code is nowhere near being complete nor API-stable. Use it at
  * your own risk, and contributions would be welcome.
  * </p>
+ *
+ * @param <T> the type of chart metadata.
  */
 abstract public class SVGChartRenderer<T extends ChartInfo> extends AbstractChartRenderer<T> {
 

carte/src/io/sf/carte/report/ReportStore.java

@@ -39,8 +39,8 @@ default void init(DOMElement configRoot) throws ReportException, IOException {
 	 * 
 	 * @param chartInfo the chart information and data.
 	 * @param document  the document to store (or to store the data in).
-	 * @throws ReportException
-	 * @throws IOException
+	 * @throws ReportException if a non-IO problem was found.
+	 * @throws IOException if an IO problem was found.
 	 */
 	void store(ChartInfo chartInfo, DOMDocument document) throws ReportException, IOException;