Version 1.7.8: Some fixes based on Prosper July 1 update

Prosper updated their API on July 1st and in the process broke some fundamental features. There is no workaround. So if you happen to be watching a member or listing or group that has a 'bad' key it will prevent the favorites list from showing. This same Prosper bug has broken the Hot List.

I fixed the change related to the Market Analysis links.

In version 1.7.8 is a fix required to properly show listings with no group.