Unreachable pages for logged in and not logged in users

[lonkaars]

Some pages shouldn't be accessible for logged in users, these pages include:

• Login page
• Register page

Some pages also crash due to runtime errors caused by 4xx responses from the api server. These pages include:

• User account pages (when visiting these a dialog box should be popped up offering to register or login)
• Settings page

[lonkaars]

a06a4748be1f423dce21026f992ebb6a400d4912 makes sure that logged in users can't access the register and login pages. I'm going to do the settings/account pages tomorrow