fix bcrypt-nodejs error

package.json

@@ -49,11 +49,11 @@
     "browserify": "^13.1.0",
     "chai-xml": "^0.3.1",
     "docdash": "^0.4.0",
-    "eslint": "^3.3.1",
+    "eslint": "^3.7.1",
     "eslint-config-airbnb": "^13.0.0",
     "eslint-plugin-import": "^2.2.0",
     "eslint-plugin-jsx-a11y": "^2.2.3",
-    "eslint-plugin-react": "^6.1.1",
+    "eslint-plugin-react": "^6.4.0",
     "gulp": "^3.9.1",
     "gulp-babel": "^6.1.2",
     "gulp-cli": "^1.2.2",

src/libs/models/user.js

@@ -64,7 +64,7 @@ UserSchema.pre('save', function (next) {
             if (err) {
                 return next(err);
             }
-            bcrypt.hash(user.password, salt, function (err, hash) {
+            bcrypt.hash(user.password, salt, null, function (err, hash) {
                 if (err) {
                     return next(err);
                 }