Exception: NoneType is not iterable

[simon-ess]

In

recsync/server/recceiver/cfstore.py

Line 460 in 88665ce

for ch in client.findByArgs(prepareFindArgs(conf, [('~name', eachSearchString)])):

we call findByArgs from the CF python client. However, this returns a None when a 404 is sent back, resulting in the titular exception.

This is parallel to ChannelFinder/pyCFClient#27; I am not sure where the best fix should be, but this is just to track it in both repositories.