still various broken things, but...

- making serious headway into eliminating password.
- updating account settings will need a password form/text field
- new refresh_acctinfo() function to replace login_and_fetch_dash()
  in most cases.
- stop clearing localstorage on logout. instead, remove the keys
  that should be removed, and keep the things that are important
  to keep around (like home library setting)
- add logged_in() checks to a couple things (like account settings)
- "Login to" -> "Log in to"
- account stuff is probably pretty fragile at this point. do not
  push this build to production! ;p

Signed-off-by: William Rockwood <wrockwood@tadl.org>