[Fix #44]  Better mobile UI

You'll need a separate button to handle the "check email" and "reset request sent" states. To get to the check email state:

1) Click "Sign in"
2) Enter "unverified" as the username
3) Click the "Next" button, see it give you an error

To check the "reset request sent" state:
1) Click "Sign in"
2) Enter "pass" as the username
3) Click the "Forgot your password?" link
4) Click the "Next" button, see it give you an error