patch drupal less module with pre and post process hooks

pre_post_less.patch

diff --git a/less.module b/less.module
index 20c27317ba2be24b139a0a193dcaa4cad6694ff2..5c269ed4405c66171eb526048cdded2727d0f236 100644
--- a/less.module
+++ b/less.module
@@ -107,7 +107,21 @@ function _less_pre_render($styles) {
         $data = preg_replace_callback('/url\(\s*[\'"]?(?![a-z]+:|\/+)([^\'")]+)[\'"]?\s*\)/i', '_drupal_build_css_path', $contents);
 
         try {
-          $output_data = $less->parse($data);
+          	$mods = module_implements("less_css_preprocess");
+			if (!empty($mods)) {
+			  foreach ($mods as $mod) {
+			    $data = call_user_func("{$mod}_less_css_preprocess", $data);
+			  }
+			}
+
+			$output_data = $less->parse($data);
+
+			$mods = module_implements("less_css_postprocess");
+			if (!empty($mods)) {
+			  foreach ($mods as $mod) {
+			    $output_data = call_user_func("{$mod}_less_css_postprocess", $data);
+			  }
+			}
           file_unmanaged_save_data($output_data, $output_file, FILE_EXISTS_REPLACE);
         }
         catch (Exception $e) {