added plfit_py - a pure-python (numpy-free) and therefore somewhat hobbled version of plfit
added plfit_py - a pure-python (numpy-free) and therefore somewhat hobbled version of plfit


git-svn-id: 4511b3d811903a91403bf66535cdd426db6c410e@380 7a03b35a-38c0-11de-8fef-1f5ae417a2df

astocko/agpy,astocko/agpy,keflavich/agpy,keflavich/agpy,keflavich/agpy,keflavich/agpy,astocko/agpy,astocko/agpy