Add "--Exit Chain--" to the list of next actions on the approval-chaain-manager.

application/modules/requests/views/scripts/approval-chain-manager/index.phtml

@@ -63,7 +63,8 @@
                             'nextAction',
                             null,
                             null,
-                            $this->approvalActions->arrayFromMethod('getName')
+                            array('_null' => '--Exit Chain--')
+                            + $this->approvalActions->arrayFromMethod('getName')
                         ); ?>
                     </td>
                 </tr>
@@ -111,7 +112,8 @@
                             'nextAction[' . $approvalLink->getId() . ']',
                             $approvalLink->getNextAction(),
                             null,
-                            $this->approvalActions->arrayFromMethod('getName')
+                            array('_null' => '--Exit Chain--')
+                            + $this->approvalActions->arrayFromMethod('getName')
                         ); ?>
                     </td>
                     <td>