Update vgl library to fix clipping bug.

Change-Id: Ifebf955a77c5ea062dd528d7cbb7c55142ff8b98
Fix for polyhedron cells.

This happens for datasets containing a mixture of cell types.  The
vtkIdList was not reset consistently between polyhedron cells and other
cell types.

Change-Id: I482d9225f5dac305ba742287145dc53dd51f31c3
Update xdmf to compile with clang 3.4 and c++11 enabled.

Change-Id: Ie9b337d48b26fe4a67700c0dbbff55827cd9739c
BUG0013829: vtkAssembly::GetBounds adds bounds which are uninitialized

If an assembly part's bounds have not been initialized, the assembly
still accumulates that part's bounds. This results in invalid bounds.

Added a test based on the solution proposed by the bug reporter.

Thanks to Joo and Serge for the patch.

See: http://www.vtk.org/Bug/view.php?id=13829 for details.

Change-Id: If4b2f93d28da77072306997cde84b8f6f35b85fe
BUG0014331: Filter skips VTK_CUBIC_LINE

VTK_CUBIC_LINES are not processed. The check to see if a cell is not a
3D cell, does not include VTK_CUBIC_LINES.

Added an error report if a cell passes the 3D cell check but is not a
3D cell.

Thanks to Andreas Buykx for discovering the bug and providing a fix.

See http://www.vtk.org/Bug/view.php?id=14331

Change-Id: I791e9f8e5cd8ae1c4949442391e4e695f63e5957
BUG: Fix build failure in RenderingParallelLIC on Intel compiler

MPI symbols weren't defined when linking the RenderingParallelLIC
library on Intel compilers.

Also, removed unnecessary include_directories() commands.

Change-Id: Iea1c0b0c7e2200604b5640363597be917e820a48
Merge topic 'vtkweb-update-vgl-rendering' into master

5c1f438a Update vgl library to fix clipping bug.
Merge topic '0014331_UnstructuredGridGeometryFilter' into master

fcaf2691 BUG0014331: Filter skips VTK_CUBIC_LINE
Merge topic '14503_fix_intel_build' into master

f61175eb BUG: Fix build failure in RenderingParallelLIC on Intel compiler
Merge topic 'fix-append-filter-for-polyhedron-cells' into master

ac52a402 Fix for polyhedron cells.
Merge topic 'clang_libc++11_support' into master

873da3e4 Update xdmf to compile with clang 3.4 and c++11 enabled.
Merge topic '0013829_vtkAssemblyGetBounds' into master

0f41f229 BUG0013829: vtkAssembly::GetBounds adds bounds which are uninitialized
Added code to draw current selection rectangle in viewport.

When the viewport is in selection mode, there is now some visual
feedback indicating what the selection will contain.

Change-Id: I8e144ed91c60caf216ad2dac0dce82d8e82ca14a
Merge topic 'vtkweb-add-selection-rectangle-to-viewport' into master

0d8d9933 Added code to draw current selection rectangle in viewport.