STYLE: only use paraview settings when actually available
- this means executing makeParaView prior to building OpenFOAM itself,
but is consistent with the instructions given by makeParaView,
and elminates anticipating the source location from the paraview
config file, which increases the build flexibilty for ThirdParty
* boost 1_62_0 (Sept 2016)
* CGAL 4.9 (Sept 2016)
- now has headers-only mode that could be interesting
* FFTW 3.3.5 (Jul 2016)
* openmpi 1.10.4 (Sept 2016)
- the first openmpi 2.x release is also available, but too early to switch
* paraview 5.2.0 (Nov 2016)
- builds without additional patching
STYLE: removed unneeded CMake environment variables
- move unset mpi buffer size from config.csh/settings -> config.csh/mpi
- wmUNSET now also unalias wmREFRESH
Note: unsetenv WM_COMPILER_TYPE in csh variant?
- drop reference to paraview-3 in config files.
Cannot say anything definite about support for versions
this old (2012)
