Create views for varying user access levels

[alanplotko]

We have various views to implement, as I've been informed:

• Guest (sees static content and login option)
• Student/Faculty member that rents bikes (sees dashboard, can't rent bikes unless on tablet in University Union)
• Maintainer (sees "admin" view for maintenance-related matters only)
• Admin (sees all)

We will change the view based on the users' permissions. @jpalazz2, @hallfox, how do we plan to carry that logic over to the frontend? I can get the general look down for now, but we'll have to ensure the right view is loaded before returning from the login process.