Revert "Upgrade to django 1.6.4 (bug 1005911)"

This reverts commit ee1c2fae26cb48fb2335b0b0c742214026e4a0fc.
Support multiple pay acct. in lookup (bug 1005261)
Merge pull request #2054 from kumar303/multi-lookup

Support multiple pay acct. in lookup (bug 1005261)