fix URL: bitbucket no longer hosts us =(
fix URL: bitbucket no longer hosts us =(

vlas-sokolov/pyspeckit,keflavich/pyspeckit,pyspeckit/pyspeckit,jpinedaf/pyspeckit,low-sky/pyspeckit,allisony/pyspeckit,low-sky/pyspeckit,vlas-sokolov/pyspeckit,pyspeckit/pyspeckit,jpinedaf/pyspeckit,e-koch/pyspeckit,keflavich/pyspeckit,e-koch/pyspeckit,allisony/pyspeckit