Add confirmation for options reset in Admin

qa-include/lang/qa-lang-admin.php

@@ -222,6 +222,7 @@
 		'requires_php_version' => 'Disabled - requires PHP ^ or later',
 		'requires_q2a_version' => 'Disabled - requires Question2Answer ^ or later',
 		'reset_options_button' => 'Reset to Defaults',
+		'reset_options_confirm' => 'Are you sure you want to reset all options on this page to their defaults?',
 		'resume_mailing_button' => 'Resume Mailing',
 		'save_options_button' => 'Save Options',
 		'save_recalc_button' => 'Save and Recalculate',

qa-include/pages/admin/admin-default.php

@@ -849,7 +849,7 @@
 			),
 
 			'reset' => array(
-				'tags' => 'name="doresetoptions"',
+				'tags' => 'name="doresetoptions" onclick="return confirm('.qa_js(qa_lang_html('admin/reset_options_confirm')).');"',
 				'label' => qa_lang_html('admin/reset_options_button'),
 			),
 		),