Updates to the Clojure codes.
Moved the Chapel codes to a subdirectory.
Move all Fortran codes to a subdirectory.
Relocate the Haskell codes to a subdirectory.
Amend the SConstructs a bit.
Move the C and C++ codes into their respective subdirectories.
Assume Boost.Thread, Boost.MPI and TBB are installed in a standard place.
Rename some of the files.