* Fixed '7743, zone pick not working on a time-curve.

* Fixed '8513, Issues with query (query-over-time of a variable other than the
  variable of the originating plot would not get the variable name/ units
  correct in the annotations).  I also added the ability for a query-through 
  -time to use the query var and its units to set the Y-axis labels.  
  (pick-through-time uses this).

* Changed 'debug5' messages to 'debug4' (so that possibly
  important messages could be seen without having to wade 
  through all the Xfer and ParentProcess stuff that's spit out 
  to debug5).  Currently, this only includes files I touched to 
  help me find the pick/query bugs fixed above.


git-svn-id: http://visit.ilight.com/svn/visit/trunk/src@4587 18c085ea-50e0-402c-830e-de6fd14e8384