Custom advertising backend

[cloutier]

Right now ipfs.pics uses Google adsense to allow server maintainers to pay for their hosting and their code development. It has the advantage of being quick to set-up and maintenance-free, but its tracking is not something I wish to impose on our users. The current compromise - making sure everything works well under adBlock to those who wish to opt-out of advertising - feels like a bad compromise.

Our advertising code should also allow us to replace ads with protips from time to time (like keyboard shortcuts or why ipfs is cool in the first place), run pro bono ads for Firefox for our IE and chrome users and pro bono ads for charities when major catastrophes occur.

We can run those on our nsfw posts for now, while we scale this, and replace adSense with this when it will scales well.

Some idea of things we can run as ads:

• digitalocean affiliate link
• Amazon affiliate links