Add Instagram support

[dwillis]

No description provided.

[wismer]

I happen to have an old project that I worked on using the instagram api some time ago. I didn't get very far with it, but I tinkered some with this library and had my website be setup as the api proxy for testing (it requires a callback url, so as far as I know this is the only way to do it). You can try it by manually going here: http://lankstrosity.us/statement, though you may have to login to instagram beforehand.

https://github.com/wismer/statement/blob/master/lib/statement/instagram.rb

If this is something that would be helpful, let me know.

[dwillis]

Interesting, thanks!