ENH: Merge changes from ParaView-2-4 into VTK-5-0 branch to refix bug 2904.

cvs -q up -j1.1.4.1 Parallel/VTKParallelCMakeTests.cmake
cvs -q up -j1.346.2.2 -j1.346.2.3 CMakeLists.txt
cvs -q up -j1.142 -j1.142.2.1 Parallel/CMakeLists.txt