Updated package to point to CommonJS build

Author: Brian Vaughn

package.json

@@ -2,7 +2,7 @@
   "name": "js-search",
   "version": "1.3.5",
   "description": "### What is it?",
-  "main": "dist/js-search.js",
+  "main": "dist/commonjs/index.js",
   "directories": {
     "test": "tests"
   },