tidying up loose ends.

dropped nickname, message
fixed map to drop nickname, message
fixed code to expect name, city only
added page curl to hero unit
fixed close modal on save
fixed login form.  logout is still ugly.

modified:   _ddoc/views/recent-signups/map.js
new file:   css/curl.css
modified:   css/main.css
modified:   index.html
modified:   js/couchapp/jquery.couchLogin.js
modified:   js/main.js