1) I enhanced the hohlraum flux query so that it took an additional
   argument that indicated if it should use the emissivity divided by the
   absorbtivity in place of the emissivity.

   In the cli, the hohlraum flux query now takes an optional second
   integer value that controls the behavior.  The old syntax, which is still
   supported is:

Query("Hohlraum Flux", 100, 0.5, 0.5, 0., 0.1, 0., 0., ("a0", "e0"))

   The new syntax is now:

Query("Hohlraum Flux", 100, 0, 0.5, 0.5, 0., 0.1, 0., 0., ("a0", "e0"))

   The third argument controls the optional behavior.  Using a "0" gives
   the old behavior and using a "1" gives the new optional behavior.

   I also added the control to the gui.  The new argument is a text field
   labeled "Divide Emis by Absorb".  While I was in there I discovered that
   the hohlraum flux query was broken in the gui for almost a year.  It
   works again.



git-svn-id: http://visit.ilight.com/svn/visit/trunk/src@7314 18c085ea-50e0-402c-830e-de6fd14e8384