mxcl/homebrew — pull request #9660 by toothbrush (2012-01-18 00:20:47+00:00)
Title: give openmpi a more logical package name

I feel that openmpi is a better name than open-mpi, so I added an alias. Also, last time this commit was fudged in with the addition of bsponmpi, now they're nicely separated into branches.