Use Lua proxy scripts to get near-realtime data from the social media platforms.

[arr2036]

Build the JSON files for the Twitter, GitHub and StackOverflow files more often than when jekyll runs for the web site content. Ideally in real time, but by cron would be fine. Arran wrote a bunch of proxy scripts in /api/social/, many of them have tests, and the website should be updated to use these at some point, instead of the jekyll plugins.