feat(lunr): some optimizing lib/lunr/*.js (#367)

assets/lib/lunr/lunr.it.js

@@ -19,7 +19,7 @@
  * export the module via AMD, CommonJS or as a browser global
  * Export code from https://github.com/umdjs/umd/blob/master/returnExports.js
  */
-;
+
 (function(root, factory) {
   if (typeof define === 'function' && define.amd) {
     // AMD. Register as an anonymous module.
@@ -614,4 +614,4 @@
 
     lunr.Pipeline.registerFunction(lunr.it.stopWordFilter, 'stopWordFilter-it');
   };
-}))
+}))