BoxPlot test from the build.

     Options (Learn, Validate, and Assess) which can be executed in
     combination. The flow of RequestData() has subsequently been
     altered. Output ports are modified or simply copied from the input,
     depending on the chosen option values.
ENH: statistics engines now have three output ports: 1 for data (unchanged)
     and 2 for meta information. The first meta port (port 1) contains
     the model itself, modified or not in learn mode. The second meta
     port (port 2) contains meta information about the model itself, such
     as quality of fit to the data, information entropy, etc.
ENH: updated all concrete statistics classes and tests accordingly.

BUG: When setting a value in vtkInformation, do not call Modified if the value does not actually change.

ENH: Add export for vtk_TIFFMergeFieldInfo. While I'm in there, alpabetize the list and eliminate duplicate entries. (There were 5 duplicates since the list was not alphabetized.)

     pairs of table columns (as permitted by bivariate statistics)
ENH: updated test accordingly
PERF: removed unnecessary code

ENH: Expand support for per piece priority determination. See TestPriorityStreaming for an example. This commit makes it easier to ask for priority, via a new method in the StreamingExecutive and Algorithm, and adds priority determination to the clip and cut filters. Thanks Nehal Desai and Jim Ahrens.

datasets. Added new vtkPReflectionFilter which support reflection in parallel.

     well.

     Assess mode.

     private class) to handle the internals of bivariate statistical
     engines, most notably: selection of pairs of columns of interest,
     and interface with the UI.
ENH: made existing bivariate engines derive from this class, and thus no
     longer handle these things themselves.
ENH: updated test harness accordingly.
BUG: some Modified() calls were in order at places.
STYLE: documentation updates and corrections.

This commit was manufactured during conversion from CVS to merge the
end of the ParaView 3.2 release branch.

COMP: Perhaps the link errors are due to a not-clean build of VTK. TCL wrap vtkDijkstraGraphGeodesicPath anyway.