Don't set foreground of null objects.

I should probably fix this is a nicer way, but this works.

Change-Id: I87ba4cb91d4fc99e3e2a00dde4ca909070150c9f
Reviewed-on: http://gerrit.dmdirc.com/3758
Reviewed-by: Chris Smith <chris@dmdirc.com>
Automatic-Compile: DMDirc Build Manager

src/com/dmdirc/addons/ui_swing/components/addonpanel/AddonCell.java

@@ -126,8 +126,12 @@ public class AddonCell extends JPanel implements AddonToggleListener {
 
     @Override
     public void setForeground(final Color fg) {
-        name.setForeground(fg);
-        status.setForeground(fg);
+        if (name != null) {
+            name.setForeground(fg);
+        }
+        if (status != null) {
+            status.setForeground(fg);
+        }
     }
 
     @Override