use the correct opts for browserify

lib/bundle.js

@@ -39,7 +39,12 @@ _log     = require("./log");
  * @param {function} complete - next function to call (async)
  **/
 function bundle (input, nc, complete) {
-  var b = browserify();
+  var b = browserify(input, {
+    builtins: false,
+    commondir:false,
+    detectGlobals: false,
+    browserField: false
+  });
   var bundlePath = path.join(nc, "lib", "nexe.js");
   var ws = fs.createWriteStream(bundlePath);
 
@@ -47,7 +52,6 @@ function bundle (input, nc, complete) {
     fs.unlinkSync(bundlePath);
   }*/
 
-  b.add(input); // add the file.
   var bfs = b.bundle(); // open the bundle stream.
 
   bfs.pipe(ws); // pipe it to the write stream we created earlier