login and register pages styled, linked, etc
tests fixed to match french keywords
removed users/show action; after sign in/up, user is redirected to profile action
added profile edit tests/controller/routes/views; did front-end work for profile and profile edit page
a logged-in artist can edit their profile
Merge pull request #2 from pjfranzini/master

Styling added for login/register pages. Added profile features - users can view and edit their profile. Tests pass with french keywords.