Create guestLogin method

Add check for valid email address as username

Use angular-flex for form
Implement FormControl and Matcher

Adjust form to use fxLayout
Add FormControl and Matcher

Add some more demo room data
Use Material's Card for room view
Add some more buttons
Add some simple stylings

Don't return observables in getter functions anymore as we're storing the user in a object we can return immediately.

Store and load user data so we don't lose the user's data on reload.

Added service handling local data. Use this service so we can change the used technology (cookie, local storage, ..) easily.