Author Attestation page

[dob]

Right now the homepage lets you create an attestation by pasting the IPFS hash. Instead you should fill out the form fields, which will generate the IPFS file for you. Bonus points if this file is signed by the user's Ethereum private key to prove that they were the author.

If the contract isn't verified yet, then they'll need to verify the contract first by providing it's code, which I'll file in issue #3.

[dob]

Current status is that the frame of the page is set up with most input fields, the attestation is roughly formed, and it's written to IPFS. It's not yet writing a transaction to ETH. We should settle on a real schema before we muck around with perfecting all the inputs and IPFS formatting, but as soon as we do this, we should have end to end attestation creation and viewing working.

[dob]

Page is now functional, and writes attestation both to IPFS and to TAP. Obviously needs UI work, and we have to settle on the final attestation schema, but now new attestations are addable and viewable in app.