Fix changelog.md Trac links and nested lists.
Separate layouts.
Be consistent with the header markdown.
Add html validation test.
Fix validation errors.
Add JSHint check.
Test everything with Travis.
Move version defines in the Grunt task.

We already have them there so there's no need to duplicate stuff.
Support only Node.js 0.10.x.

If/when 0.11 is released we'll test against it again.
Switch to the new dependency badge.
Move files into source.
Just use `strong` for the FAQ `ol`.
Tweak browser warnings.
Recreate our images.

Slightly better compression.
Convert the thumbnails to 8-bit.
Move `dependencies` into `devDependencies`.
Add watch task.

sss
Move jshint options to .jshintrc.
Cosmetics: change the classes' order.
Add note about Jekyll 1.4.3 not working on Windows.