CC-4090: Make code style PSR compliant

-removed all trailing whitespace in forms directory
-replace all tabs with 4 spaces

airtime_mvc/application/forms/AddShowStyle.php

@@ -18,14 +18,14 @@ class Application_Form_AddShowStyle extends Zend_Form_SubForm
             'viewScript' => 'form/add-show-style.phtml',
             'class'      => 'big'
         ))));
-        
+
         $bg->setValidators(array(
             'Hex',
             array('stringLength', false, array(6, 6))
         ));
-                
 
-	// Add show color input
+
+    // Add show color input
         $this->addElement('text', 'add_show_color', array(
             'label'      => 'Text Colour:',
             'class'      => 'input_text',
@@ -38,7 +38,7 @@ class Application_Form_AddShowStyle extends Zend_Form_SubForm
             'viewScript' => 'form/add-show-style.phtml',
             'class'      => 'big'
         ))));
-        
+
         $c->setValidators(array(
                 'Hex',
                 array('stringLength', false, array(6, 6))