* Removed the 'mark message as seen' C code (in the mailbox view) because it

* Removed the 'mark message as seen' C code (in the mailbox view) because it
  was no longer getting called.  Implemented this in JavaScript using an ajax
  call plus a new WebCit function to perform generic server commands using
  ajax.  Also reinstated the removal of bold font weight for messages
  transitioning from unseen to seen (again, in JavaScript).