Make sure to clear galaxy associations on reload

This deals with a problem I ran into in Chameleon.  For example, if I unsubscribe a user, their subscriptions still appear as active.  This is because they aren't fetched again.  This fixes that behavior.

I need to verify that this actually fixes the problem I ran into in Chameleon before merging it but I expect it to.

Green: http://janky.offerengine.com/job/galaxy-client-all/190/