Upcoming events we are speaking and attending

This introduces two new sections at the bottom of the Events & Talks page:
- Upcoming events we are speaking at
- Upcoming events we are attending

It queries the "unofficial" Lanyrd api to collect event data for each user in the [`authors.json`](https://github.com/guardian/developers-site/blob/6f1364716a829316ef6b63fc03ce24c80d380fd0/src/content/authors.json#L6) file, then flattens the data and dedupes events multiple people are talking or attending.

Unfortunately the api does not support CORS or JSONP, therefore I am constructing the data on build of the site in the gupl file and not dynamically on page load. The alternatively would have been to create a simple proxy, but this method was preferred. It was agreed that setting up a scheduled build for the project in TeamCity every morning would prevent the data from going stale.

I have ran the design changes past @paulrobertlloyd but the [copy](https://github.com/guardian/developers-site/blob/6f1364716a829316ef6b63fc03ce24c80d380fd0/src/events-%26-talks.ejs#L96) underneath each section needs some love.

### Screenshot
![google chrome](https://cloud.githubusercontent.com/assets/80089/3638480/8b602f2a-104c-11e4-9b48-30d47cae6b9b.png)

Maybe add a comment to say it is half the height of the gravatar.

Oliver Joseph Ash
Software Engineer


On 21 July 2014 10:51, Patrick Hamann <notifications@github.com> wrote:

> In src/css/main.scss:
>
> > +    position: relative;
> > +}
> > +
> > +.event__title {
> > +    padding-right: 56px;
> > +}
> > +
> > +.event__desc {
> > +    padding-right: 56px;
> > +    margin: 0;
> > +}
> > +
> > +.event__users {
> > +    position: absolute;
> > +    right: 0;
> > +    top: -28px;
>
> As discussed in person, this fine as it is positioned relative to the
> entire <li>
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/guardian/developers-site/pull/33/files#r15161136>.
>

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