Merge topic 'charts_bugs'

acbfa42e BUG: Initialize Position and Image in vtkImageItem.
c14a5725 ENH: Exclude a couple of Chart classes from wrapping.

Charts/CMakeLists.txt

@@ -85,12 +85,14 @@ SET_SOURCE_FILES_PROPERTIES(
   vtkContextBufferId
   vtkBarMark
   vtkChartColors
+  vtkContext2D
   vtkDataElement
   vtkDataValue
   vtkLineMark
   vtkMark
   vtkMarkUtil
   vtkOpenGLContextBufferId
+  vtkOpenGLContextDevice2D
   vtkPanelMark
   vtkValueHolder
   vtkWedgeMark

Charts/vtkImageItem.cxx

@@ -28,6 +28,8 @@ vtkCxxSetObjectMacro(vtkImageItem, Image, vtkImageData);
 //-----------------------------------------------------------------------------
 vtkImageItem::vtkImageItem()
 {
+  this->Position[0] = this->Position[1] = 0;
+  this->Image = NULL;
 }
 
 //-----------------------------------------------------------------------------