Fix FS to include Embark

lib/core/fs.js

@@ -12,8 +12,11 @@ const pathConfigs = {
 
 function restrictPath(receiver, binding, count, args) {
   const dapp = dappPath();
+  const embark = embarkPath();
+
   const allowedRoots = [
     dapp,
+    embark,
     os.tmpdir()
   ];
 
@@ -187,6 +190,7 @@ module.exports = {
   mkdirpSync,
   move,
   moveSync,
+  outputFileSync,
   readFile,
   readFileSync,
   readJSONSync,