Submit app to Instagram for review of the API

[amcewen]

Instagram have put the "app" which accesses their API into their "sandbox" mode, because they've decided to change how their API access works but didn't deign to use the email address they already had to, y'know, actually inform the people using the API that they'd be effectively turning off access to it on 1st June.

So we need to submit the app for review, but before we can do that, we need to provide a link to a privacy policy... (and so will need to write a privacy policy...)

[amcewen]

When we re-enable the Instagram support we should also double-check that the image URLs are https so we don't resurrect issue #23.

[amcewen]

Closing this because given more recent work I've given up with on the Instagram API I think it'll be a continual battle to get anything working.

If someone wants to work out a solution or finds that the Instagram API has opened up again to allow it, feel free to reopen this issue (or, more likely, create a new one to cover the work in adding it back in).