Return only https icons where possible

[ralphbean]

Originally filed downstream here: https://fedorahosted.org/fedora-infrastructure/ticket/4384

Right now we return avatar icons from python-fedora and lots of our own icons. Those should all be over https.

[ralphbean]

Grepping the source of this repo for "http:" should help show all of the locations.

To any new contributors who try to take this on, try running the test suite before and after your change.

[ralphbean]

Reported elsewhere downstream: https://fedorahosted.org/fedora-infrastructure/ticket/4388

[cydrobolt]

Hmm, is this ticket still active? Datagrepper seems to be returning images over https now, without any issues.

[ralphbean]

Datagrepper seems to be returning images over https now, without any issues.

Good call. Yes, I think it's all fixed up now.