Code review comment for lp:~daker/loco-team-portal/fix.1542697

The modified parameter is not to be set by us. We are supposed to use whatever the server we're fetching-from has previously told us the feed was last modified. We should also have etag functionality included in this MR. See http://pythonhosted.org/feedparser/http-etag.html for details.

Saving the correct last-modified time should be:

self.last_updated = data.modified_parsed

and an etag would be accessed, and saved into a new field, from the response with:

self.last_etag = data.etag

we'd need to add the last_etag field into the model and update the migrations.