Prepare for release version 1.6.0

- Add: Setting to customize the mouse-over box shadow
- Update: ManFisher note styling
- Update: Tested with latest nightly build of WordPress 4.1

git-svn-id: https://plugins.svn.wordpress.org/footnotes/trunk@1009659 b8457f37-d9ea-0310-8a92-e5e31aec5664

templates/dashboard/customize-mouse-over-box.html

@@ -48,5 +48,9 @@
         <td>[[label-max-width]]</td>
         <td>[[max-width]] <em>[[notice-max-width]]</em></td>
     </tr>
+	<tr>
+		<td>[[label-box-shadow-color]]</td>
+		<td>[[box-shadow-color]] <em>[[notice-box-shadow-color]]</em></td>
+	</tr>
 	</tbody>
 </table>