User Auth

Functionality

[ ] The /login page should not display a link to Log In. Same for /signup
[ ] Going to a random route /#/oweiniouewbrviuwebv should redirect or display a 404 page
[x] Errors should display for both /signup and /login.
[ ] Errors should clear when moving between /signup and /login.
[x] Can sign up a user
[x] Can sign in as a user
[x] Can log out a user
[x] Can't sign up with the same username/email
[x] Pressing enter after filling out the session form should use the form data, not the demo user

[x] The site should look exactly like the actual site
[x] All relevant elements should have cursor: pointer on hover
[x] When errors are displayed, most elements should not move around the page (particularly input boxes)
[ ] Remove Redux logger and all console.log()'s from production