supports quad-buffering and shutter glasses.

The standard drawing code is unchanged.


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from  r31742 through r31794


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   test/stressProof
    - Add test for the submergers functionality
   tutorials/proof/runProof
    - Add argument to enable submergers
   tutorials/proof/getProof
    - Add hook to start a valgrind session; this is controlled by the env GETPROOF_VALGRIND (see top of
      the macro for details).


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Fix graph names such that the roottest works.


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- Add a macro replaying a recorded session showing usage of the fit panel


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From Andrei:
new class TGeoIterPlugin. 
This is an ABC for user plugins that need to call some arbitrary code during 
geometry hierarchy iteration. The first use case (requested in Savannah #57591)
is to dynamically change the color of volumes in selected paths, but not the 
color of the same volume in other paths. This use case is already implemented 
in TGeoPainter and an example of usage is given in the tutorials files 
$ROOTSYS/tutorials/geom/iterplugin.cxx and runplugin.C.


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  New tutorial -- showing VSD (Visualization Summar File) from ALICE.
  For now shows clusters and reconstructed tracks but adding hits and
  kinematics is now easy!

* MultiView.C
  Add function SetDepth() to make it easy to set current z-depth of
  all projection managers at the same time.


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  executed several times).
  root [0] .L multipalette.C
  root [1] multipalette()
  root [2] multipalette()


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TGLViewer and sub-classes:
- Improve help text for TGLViewer ("Help on GL viewer").
- Add support for menu-bar hiding in TGLSAViewer.
- Allow TGLEmbeddedViewer to be connected to a GED editor.
- Remove support for "camera home" on double click -- show GED editor
  of the viewer instead.

TGLEventHandler:
- Improve handling of mouse-button events:
  - Only allow single button activity at the same time.
  - Remove function-static variables.

TEveViewer:
- Enable by default menu-bar hiding for GL viewers.


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  Canvas. It will be used by the TColor documentation.


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merge developments in https://root.cern.ch/svn/root/branches/dev/roostats/roofit/roostats from revision 30833 to revision 31273 


fix also the tutorials due to the new changes (copy from branch)


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  Set default geo colors.

* geom_atlas_playback.C
  New tutorial playing a recording of a geom_atlas.C session.


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Also state where the tutorial is ($ROOTSYS/tutorials/whatever) and link it to subversion.


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  Add setter for number of segments of a circle - SetDrawQuality(int).

* TGLEventHandler
  On Alt/Shift M1 down enable camera rotation.
  This prevents Clicked() signal to be emmitted on button release.

* compound.C
  Set projection type.


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Fix printf's format specifier: the thread number "nr" is long, not long long. Fixes http://root.cern.ch/phpBB2/viewtopic.php?t=9385
Remove indentation of thread numbers, they all have of single digits only.


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Add new 2DMode kValSizeOutline. Change default mode to kValSize.

tutorials/eve/calorimeters.C
Remove unnecessary line.

tutorials/eve/calo_detail.C
Use kValSizeOutline mode for irregular data. Add example of TGLAnnotation.


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   Add argument 'cache=sz' to control the usage of the cache, e.g.

          runProof("eventproc(cache=0)")

   disables the cache.


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  For PROOF tutorials:
  - add argument 'nwrk=N' to change the number of workers also on the fly, e.g.
         runProof("simple(nwrk=2)") 
  - add argument 'punzip' to enable parallel unzipping, e.g.
         runProof("eventproc(punzip)") 
  In the new PROOF tutorial "evenproc":
  - remove the need for the external file event-http.txt for the dataset creation
    (file names are generated on the fly)
  - read by default only the needed brabches; add option 'readall' to switch to full
    reading, e.g. runProof("eventproc(readall)")
  - add the possibility to change data source, e.g.
         runProof("eventproc(datasrc=root://lxfsrd0706.cern.ch//pool/event/http)")


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   Add tutorial "eventproc" reading "event" like events from the ROOT HTTP server
   This is useful to test the new perfomance information being added to the PROOF
   dialog box.


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