user sign up test passing

This is now passing the first spec test; User should be able to sign up for a free account Get to the account signup form
This is a good expectation to have, but not really a user expectation - rather an expectation of the system. It's ok to have it here to avoid having a separate unit spec just for this, but there should also be another expectation checking what the user sees after signing-up - like a flash message saying "You've signed up successfully"

Also, these two scenarios under the sign up feature are part of the same one - signing up successfully. They can be merged