Reture true from got_mod_rewrite if we can't determine if the module is loaded. Add got_rewrite filter. Props andy. fixes #6278

git-svn-id: http://svn.automattic.com/wordpress/trunk@7508 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/misc.php

@@ -1,7 +1,8 @@
 <?php
 
 function got_mod_rewrite() {
-	return apache_mod_loaded('mod_rewrite');
+	$got_rewrite = apache_mod_loaded('mod_rewrite', true);
+	return apply_filters('got_rewrite', $got_rewrite);
 }
 
 // Returns an array of strings from a file (.htaccess ) from between BEGIN