* After setup is complete, tell them how to log in.

* Don't allow the creation of accounts with blank passwords.
* Don't allow users to change to a blank password.
* Fixed the positioning of a few more screens that accidentally got
  partially hidden underneath the iconbar.
* Boldfaced the "Password changed." and other prompts.
* Removed the unreadable blue-on-blue links in the calendar day
  view.  They're redundant anyway, now: "Add new calendar event" and
  "month view" are both in the banner bar.
* "New messages / All messages" are now "Read new messages / Read all
  messages"
* "Save message" button is now "Post message" for public room posts,
  and "Send message" for email.
* "Message has been posted" is now "Message has been sent" for email.
* Swapped positions of "Add users" and "Edit users" boxes.
* vCard editor: "Other Internet email addresses" is now "aliases"
* Renamed the "Users" button to "Who is online?"