README.md: switch to SVG badges.
fix part of #561
Trigger 'push' event on `history.back()`
Cache dom before leaving the page, rather than right after loding

This way dynamically added dom (vis js) also gets cached.
Animated transition on `window.history.back()`
Merge pull request #557 from artemave/patch-1

Animated transition on `window.history.back()`
Update sliders.js

This update get's rid of the jump at the start of the slide. On almost every slider know to man there is a 15px jump. This one has it to. If you log out deltaX you'll see it almost always starts with -16px. That's a noticeable jump. This change fixes it so that the slide starts from 0 and smoothly goes from there.
Update sliders.js

Fixed coding style errors
Update sliders.js

grammar
Let me close tabs please. Let me zoom please.
Merge pull request #577 from twbs/happier-users

Let me close tabs please. Let me zoom please.
Update dependencies.
Run `grunt dist`.
Update .travis.yml
Remove the unused `grunt-contrib-nodeunit` module and update the rest.
Revert f452db1bb09a71b9782edeb4a21c75ae049ede74.

The validator doesn't choke anymore on this and even though it's not spec compliant, it's needed for some IE versions. So until we move favicon.ico in root, this should do the job.
Clean up validator suppressions.
Fixes validate html to allow using multiple h1 tags
Update dependencies.
Update Jekyll to v2.0.0.