disable features when not signed in

[holaymolay]

Certain features should be blocked from user access until he/she signs up.

• sections of the site should be disabled
• login & sign up links should say logout

reference: #22

[craig429]

I believe we can close this as collateral to the closed Issue #7 (User Auth) eh?

[holaymolay]

as long as it has already been implemented, yes, we can close this