CC-3001: Preferences->"Submit" button renamed to "Save", and should be at the top and the bottom of the screen

Fixed by:
1. changing label to say "Save"
2. wrap the preference form inside another form;
   within the wrapper form, add a submit button at the top

airtime_mvc/application/forms/Preferences.php

@@ -11,7 +11,7 @@ class Application_Form_Preferences extends Zend_Form
         $this->setDecorators(array(
             array('ViewScript', array('viewScript' => 'form/preferences.phtml'))
         ));
-
+        
         $general_pref = new Application_Form_GeneralPreferences();
         $this->addSubForm($general_pref, 'preferences_general');
 
@@ -24,7 +24,7 @@ class Application_Form_Preferences extends Zend_Form
         $this->addElement('submit', 'submit', array(
             'class'    => 'ui-button ui-state-default right-floated',
             'ignore'   => true,
-            'label'    => 'Submit',
+            'label'    => 'Save',
             'decorators' => array(
                 'ViewHelper'
             )