Add zoom to data icon

This adds an icon for the zoom to data button on the camera
toolbar.

Change-Id: I4a89a86fb0da7be8e9a682a83d708b249bf9a5cf
Disable zoom to data when no active source

This disabled to zoom to data button when there is no
active source.

Change-Id: I8b2f6c2a5befc1b400a602efda00d315cb1eb810
Fixed color-selection widgets on PropertiesPanel.

Fixed color-seleciton widgets on PropertiesPanel to allow picking "standard
colors". Also fix rendering logic in pqColorChooserButton to work correctly when
the button is resized.

Change-Id: Ia9ac690d515bfd47e1c3d188647347a066680219
Update to VTK master.

Change-Id: I3017b2f8110f4d6e1ff016a116850287004c1da2
Update vtkPVScalarBarActor to VTK master changes

Change-Id: I3fd11d391d5a16414a180cfd30fd0fde343af17b
Fixed Win32 error.

Was causing runtime segfaults on Win32.

Change-Id: I7be06a562d69622fd2112c34dc6a399811ad3668
BUG: 14033 Fix cmake configuration error with CMake 2.8.10.2

The variable was accumulating some garbage values. Cleaned that up.

Change-Id: I09d98d5c4dfa085739c39faa74aebe8ecffa0bcb
Merge topic 'refactor_panels'

6e3c9a6 Fixed Win32 error.
40a7024 Fixed color-selection widgets on PropertiesPanel.
Merge topic 'update_vtk_master'

231ce5e Update vtkPVScalarBarActor to VTK master changes
ca8aa7b Update to VTK master.
Merge topic 'zoom-to-data-icon'

3ea6cd5 Disable zoom to data when no active source
e7f43bf Add zoom to data icon
Merge topic 'fix_cmake_2.8.10_plugins_issue'

ecbeaa1 BUG: 14033 Fix cmake configuration error with CMake 2.8.10.2