cross_correlation shifts now works, and there are a LOT of tests [though most don't run automatically =( ]
cross_correlation shifts now works, and there are a LOT of tests
[though most don't run automatically =( ]


git-svn-id: 4511b3d811903a91403bf66535cdd426db6c410e@526 7a03b35a-38c0-11de-8fef-1f5ae417a2df

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