Currently, PyFR supports unstructured grid CGNS file only. The bump mesh you pointed is written in structured grid CGNS format.
If you make a mesh in Pointwise and written in unstructured grid CGNS format, it should work.
You can even point your CGNS library with 'export PYFR_LIBRARY_PATH=(your CGNS library path)', instead of LD_LIBRARY_PATH.
Recent CGNS (post commit e0faea6) fixed undefined H5 symbol issues. You can also get CGNS from develop branch of CGNS github.
The procedure Yoshiaki mentioned also works for me. Please use cmake to configure your CGNS build.