MPI_ARCH_PATH environmevt variable.

Stop tracking files in src/other (moved to ThirdParty).

changed.

because I failed to work out how to merge Mark's stuff -- HELP!!!

The call to foamCleanPath from etc/{bashrc,cshrc} passes all the wildcards
together as a single argument - causing nothing to be cleaned.  Now split
the args on whitespace. Also added more IFS hacking to reduce forking.

This is useful when the application has the same name as a class. For example,
polyDualMeshApp.C implements the polyDualMesh application using the
polyDualMesh class. Thus polyDualMeshApp_8C.html documents the app, whereas
polyDualMesh_8C.html is the annotated source code for the class itself.

set externally

* install into paraview-3.3 instead of ParaView3.X.x for consistency with LD_LIBRARY_PATH