Add user module to handle basic user signup and login
Move db-config directly under server dir
Add signin, signup and signinForm methods to userController
Add view templates for login, signup pages
Add new index view to show auth menus
Code clean-up
Remove user-routes and add all routes in server-config.js
Restructure server-side directory structure
Delete request-handler file
Merge pull request #37 from ryojiosawa/app-routes

Restructure server-side directory structure and add app routes