Merge pull request #21 from yaru22/upstream

Simplified callback in server's User model.
Refactored routes, added /api/{login,logout,register} support.
Fixed typo and missing semicolon.
Merge pull request #23 from yaru22/upstream

Making input tags proper in server-side auth handlebars templates.
Set Backbone.Model's idAttributes to "_id" by default.
Merge branch 'master' of github.com:pilwon/node-ultimate-seed
Removed unnecessary ensureGuest in routes.
Added missing server-side lib.controller.index.
Improved auth api. Dropped lastName requirement of User model.
Updated project version to 0.2.7.
Merge branch 'upstream'