This is just a slightly modified template I used to whip this out as quick as possible. I like the grey / blue / white / black color scheme (especially the logo) and I'd like to keep the basic layout.

currently the connection is static to infura:

// connect direct to infura - needs to change to metamask when guestbook entry is created
            web3 = new Web3(new Web3.providers.HttpProvider("https://mainnet.infura.io/ySFxqrROS2e1chccEsyS")); 

I would like it to default to Metamask first so guestbook signing is possible, but display the info anyway if they don't have metamask (and tell them to install it so they CAN sign)

the date currently shows as:
Date: 14/09/2017 20:58

I would like it to show as:
Date: 14 Sep 2017 20:58 (UTC) - or even better have it auto switch for time zones

Integrate moment() for easier date/time display and manipulation i.e. unix timestamp to mmddyy

etherscan.io can tell what block a txhash is from, and thereby tell when the contract creation date is. I'm not sure if they are doing that from their own internal databases, but i'm searching for either a web3 function that will show the contract creation date, or an API call to somewhere that can.

so the wedding contract creation date shows, and then contract finalization can be shown as well (in this case, it is in the contrtact data as marriageDate)

create a simple four field entry form that will submit a guestbook entry to the contract.

The fields are: nameFrom (from), text (message), url (of picture, website, IPFS or whatever), value (ETH donation)

it is submitted to the contract as sendMessage:

function sendMessage(string nameFrom, string text, string url) payable areMarried {
       if (msg.value > 0) {
           owner.transfer(this.balance);
       }
       messages.push(Message(now, nameFrom, text, url, msg.value));
       MessageSent(nameFrom, text, url, msg.value);
   }

donations through the guestbook are automatically forwarded to owner(multisig)

donation value is currently displayed in wei, it should be in ETH.