bulk checkin from working on the road:

bulk checkin from working on the road:

- use msgcat for more error messages - should be all things that would come3
  back from the signup server normally now
- signup server: don't display access number <SELECT> if there's none or one
- signup_server-realtime config option to run billing for signup server
  signups immediately
- signup server: pkg available to success templates, better documentation on
  success templates
- httemplate/edit/msgcat.cgi fields are properly sticky on errors
- httemplate/edit/process/msgcat.cgi - don't update identical fields