- Adding new rendered graph, hierarchy, surface, tree area representations.
   These classes consolidate code that were in several different views.

 - Adding vtkHierarchicalGraphPipeline, which renders bundled graph edges
   on top of a tree. This is a convenience class used by
   vtkRenderedHierarchyRepresentation and vtkRenderedTreeAreaRepresentation.

 - Fixing up OverView geo views and hierarchy view.

 - Removing buggy hack in vtkScalarsToColors that caused problems with
   correctly rendering color arrays.

 - Added opacity to annotations.

 - vtkGraph now creates edge points on demand instead of throwing errors,
   and correctly deep copies edge points on force ownership call.

 - Updating geovis tests to use new graph representation API.

 - Moved vtkGeoEdgeStrategy to Infovis so it can be accessed in the graph
   representation.

 - Moved vtkGeoMath to Infovis since it is used by vtkGeoEdgeStrategy.

 - Removed vtkGeoGraphRepresentation and vtkGeoGraphRepresentation2D, which
   are now superceded by vtkRenderedGraphRepresentation.

 - Removed reference loop in vtkGeoLineRepresentation's ConvertSelection
   by removing the PROP property from the selection.

 - Updating vtkGeoView and vtkGeoView2D to new view architecture.

 - Added option to Glyph3D to output cell data along with point data
   on the output glyphs.

 - vtkGraphToPolyData now correctly uses the vertex endpoint positions
   as the start and end of the polyline for each edge.

 - vtkSelectionLink's SetSelection used to always trigger the algorithm to
   be modified. This is no longer true if the same selection is set multiple
   times.

 - Changed vtkSplineFilter to handle consecutive points at the same position
   instead of outputting errors.

 - Changed vtkCosmicTreeLayoutStrategy so the output arrays are called
   "TreeRadius" and "TreeScaleFactor" instead of appending those strings
   to the input size array name.

 - Changing treemap layout strategies to appropriately fill the points
   of the tree that are used for bundled edges.

 - Added ZRange to vtkGraphLayout, if you want vertices to have
   distinct Z values on an otherwise 2D layout. This avoids Z-buffer issues
   when rendering vertices as glyphs.

 - Added Transform property to vtkGraphLayout. This optional transform will
   be applied to locations output from the layout strategy. This is used
   in geo views.

 - Fixed vtkStackedTreeLayoutStrategy to not always place the root position
   for the bundled edges at (0,0,0).

 - Added progress events to vtkTreeRingToPolyData.

 - Allow non-equal array types when PassArray is on, using GetVarantValue
   and InsertVariantValue.

 - Adding option RenderOnMouseMove to vtkInteractorStyleRubberBand2D.
   This allows views to update hover balloons.

 - Fixing bug in vtkLabelHierarchy's iterator where if the lastPlaced array
   contained indices outside the current label set range, it would crash.

 - Adding support for an "ID" array which indicates the type of label
   being processed. This is used to use different font types with different
   sets of labels using the same label placer to place them all.

 - Adding support for multiple font properties to vtkLabelSizeCalculator,
   vtkLabeledDataMapper, vtkDynamic2DLabelPlacer.

 - Adding helper functions to vtkViewTheme to tell you whether a current
   lookup table matches its internal settings, or if it needs to be
   rebuilt. This minimizes pipeline updates.

 - Adding explicit ResetCamera() calls to view tests, because views no
   longer do this automatically.

 - Fixing vtkDataRepresentation so it does not re-do a shallow copy of inputs
   into the internal pipeline unless they have actually changed.

 - Revamping vtkGraphLayoutView to use vtkRenderedGraphRepresentation.

 - Revamping vtkHierarchicalGraphView to use
   vtkRenderedHierarchyRepresentation.

 - Revamping vtkTreeAreaView to use vtkRenderedTreeAreaRepresentation.

 - Updating vtkView to only take a collection of vtkRepresentations, instead
   of supporting multiple ports/connections. We can do this because
   representations now have this option of multiple inputs.

 - vtkView has an option ReuseSingleRepresentation, where it will use the
   same representation after removing/adding input connections. This is
   used in e.g. vtkGraphLayouView so that properties assigned to the view
   persist even when the input connection is reset.

 - Fixing vtkTreeLayoutView to the newer view architecture, even though
   it should be deprecated in the near term.

 - Adding vtkGeoSphereTransform, a simple transform that goes from
   lat-long-alt and rect coords. This is what the 3D geo view has as its
   transform.

 - Adding vtkAppendPoints, which simply appends all the points and associated
   data from multiple input datasets. This is used to append all label points
   into one data object.

 - Adding vtkApplyColors, which applies colors from lut/annotation/selection
   in one place for a dataset. This is used by the new rendered
   representations.

 - Adding vtkAssignCoordinatesLayoutStrategy which uses vtkAssignCoordinates
   inside the layout. This makes the geo "layout" paradigm of lat/long arrays
   consistent with other graph layout strategies, so they can all use
   vtkRenderedGraphRepresentation.

 - Adding vtkDistanceToCamera, computes the distance of each input point
   to the camera. This can be used to scale glyphs dynamically so they
   appear the same size on the screen.

 - Adding graph-based versions of vtkGraphHierarchicalBundle and
   vtkSplineFilter called vtkGraphHierarchicalBundleEdges and
   vtkSplineGraphEdges, which perform the same task as the originals, but
   output a graph with appropriate edge points, instead of polydata.
   This allows these filters to execute before vtkGraphToPolyData.

 - The new vtkGraphToGlyphs filter takes a vtkGraph and outputs polydata
   for the glyphs. The glyphs are dynamically sized based on the position
   from the camera in order tp create glyphs with constant screen size.

 - vtkGraphToPoints converts a graph to a set of points.