Make this the place for API feedback and discussion

[Floppy]

I was thinking, it might be a good idea to make this repository the canonical place for public feedback and discussion around the API. There are still a few things I would suggest improving (though no showstoppers), and perhaps using tickets for that here would be sensible, and we could encourage other public users of the API to do the same. What do you think @alasdairrwbruce @LyndonRuff?