Tidy warnings

Change-Id: I5e1e8a6eabd136666775666144e67664edccc84c
Reviewed-on: http://gerrit.dmdirc.com/3164
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Chris Smith <chris@dmdirc.com>

src/com/dmdirc/addons/ui_swing/textpane/BackgroundPainter.java

  */
 public class BackgroundPainter extends LayerUI<JComponent> {
 
+    /** A version for this class, sued for serialisation. */
+    private static final long serialVersionUID = 1L;
+
     /**
      * Domain to retrieve settings from.
      */
         }
     }
 
-    /**
-     * {@inheritDoc}
-     */
     @Override
     public void paint(final Graphics graphics, final JComponent component) {
         final Graphics2D g2 = (Graphics2D) graphics;