* usergoto() can now be supplied a NULL room name to signify that the caller

* usergoto() can now be supplied a NULL room name to signify that the caller
  has already copied the quickroom record into CC->quickroom.  Eliminates
  an extra database fetch.
* NewMailCount() now uses a per-session counter, which is incremented
  by CtdlSubmitMsg() when the user receiving a message is logged in at the
  time the message is saved.  This eliminates the need to load and scan the
  user's mailbox every time a <G>oto operation is performed.
* The old NewMailCount() function is now InitialMailCheck() and is used at
  session startup time.