Bring in cow and write lua-cow with swig
Forget about swig, wrap cow by hand
Update domain_getcomm function
Add an example program to read Mara data in parallel
Fix a critical bug in class.lua
Begin writing script for tuning parallel HDF5 performance
Finish version of the parallel HDF5 diagnostic script
Fix some build details
Add summary table to end of test-mpio.lua

Collective IO causes valgrind errors, and eventually seg faults with
large enough data sets on the Mac.
Add MPI barriers to test-mpio script
Small reorganization: move lua-buffer to its own module
Merge branch 'cow'

Conflicts:
	Makefile
	run.lua