edited join purchase
Merge branch 'master' of https://github.com/harry-sanabria/hackPrinceton2013TeamGDT-
Merge branch 'master' of https://github.com/harry-sanabria/hackPrinceton2013TeamGDT-
Merge branch 'master' of https://github.com/harry-sanabria/hackPrinceton2013TeamGDT-
create join purchase view