just some 'dotfiles' for /bin/bash on OS X
when bash is invoked as an interactive login shell (default on OS X) it first reads/executes stuff in
/etc/profile
then
~/.bash_profile (sourced upon logging in?)
~/.bashrc (sourced upon starting a shell?)
~/.bash_login (?)
~/.profile (er?)
in that order. or not. i dunno.