Merge branch 'saving' into user_test
Consolidate login procedures into createOrOpenProject

bye bye login.html
Friendlier messages, too!
New interface for login page

eventually, separate out shared elements between homepage.css and
simsam_shared.css
get rid of unnecessary state message

Made redundant by integrated login page
Consolidate login and createOrOpenProject. now home.html

this resulted in the consolidation & removal of some views and
templates. Now, the following functions are all handled by the
login_user view and home.html:

- login
- logout
- select project
- create project

not ajax, but ajax-y when it needs to be.