feat(accountInfo): Add URL to Account Page

I was speaking briefly with @jschairb, and it appears the root problem that `target="_blank"` is trying to solve is this: We don't currently save unsubmitted form content. With the current behaviour, if a user is entering ticket data, and then clicks on the account name/number to see something, and then clicks "Back", all their ticket progress will be lost.

This is definitely a real problem, and I want to add the localstorage or sessionstorage solutions [described here](http://stackoverflow.com/questions/14420624/how-to-keep-changed-form-content-when-leaving-and-going-back-to-https-page-wor) directly into the framework to deal with this in a general way.

That said, it'll take me a little while to get to that. I will do it, but not quickly enough to satisfy the desire to have a link on the account name/number.

Where does that leave us? We either explicitly add the `target`, or we face the potential of angry users who accidentally lose content if they don't right-click/control-click the URL.

I'd really like to hear what @glynnis and @chriscantu have to say about this, because it's a UX decision that is going to affect *all* of Encore.