Twitter follow buttons (fixes #35)

- Position supportbox outside of viewport instead of setting
"display:none"
- Init social media thingies at the bottom of the page
Resolve conflict
Remove duplicated code
Stop processing if there are no tweets
Fix for commit 9e1964d
Style changes (see #32)
Merge pull request #38 from backflip/master

Twitter follow buttons (fixes #35), other fixes/changes