refactor(user.model): fix eslint warning, and resolved mongoose deprecation warning

Author: benmarten

templates/app/server/api/user(auth)/user.model(mongooseModels).js

@@ -99,22 +99,22 @@ UserSchema
 // Validate email is not taken
 UserSchema
   .path('email')
-  .validate(function(value, respond) {
+  .validate(function(value) {
     <%_ if(filters.oauth) { -%>
     if(authTypes.indexOf(this.provider) !== -1) {
-      return respond(true);
+      return true;
     }
 
     <%_ } -%>
     return this.constructor.findOne({ email: value }).exec()
       .then(user => {
         if(user) {
           if(this.id === user.id) {
-            return respond(true);
+            return true;
           }
-          return respond(false);
+          return false;
         }
-        return respond(true);
+        return true;
       })
       .catch(function(err) {
         throw err;

templates/app/server/config/seed(models).js

@@ -17,8 +17,8 @@ export default function seedDatabaseIfNeeded() {
     <% if (filters.mongooseModels) { %>Thing.find({}).remove()<% }
        if (filters.sequelizeModels) { %>return Thing.destroy({ where: {} })<% } %>
       .then(() => {
-        <% if (filters.mongooseModels) { %>return Thing.create({<% }
-           if (filters.sequelizeModels) { %>return Thing.bulkCreate([{<% } %>
+        <% if (filters.mongooseModels) { %>let thing = Thing.create({<% }
+           if (filters.sequelizeModels) { %>let thing = Thing.bulkCreate([{<% } %>
           name: 'Development Tools',
           info: 'Integration with popular tools such as Webpack, Gulp, Babel, TypeScript, Karma, '
                 + 'Mocha, ESLint, Node Inspector, Livereload, Protractor, Pug, '
@@ -47,6 +47,7 @@ export default function seedDatabaseIfNeeded() {
                 + 'and openshift subgenerators'
         <% if (filters.mongooseModels) { %>});<% }
          if (filters.sequelizeModels) { %>}]);<% } %>
+        return thing;
     })
     .then(() => console.log('finished populating things'))
     .catch(err => console.log('error populating things', err));