Fix build

sitegin/imageResizer.js

@@ -14,7 +14,7 @@ var path = require('path');
 module.exports = function(file, targetDir, width, height) {
   return path.basename(file);
 }
-function(file, targetDir, width, height) {
+var rem = function(file, targetDir, width, height) {
   if(lwip && (width || height)) {
     let tmp = path.basename(file).split('.');
     tmp.splice(-1,1);