Add Jekyll 2.0.0 release post.
Add nostalgia.
Curse you, timezones.
Remove date, better title props @benbalter
group_by not sort_by
MAXIMUM NOSTALGIA
Add list of 2.0.0 contributors.
Give them a 1/4" hole, which is what they want
Add docs for group_by and where filters
Add docs about custom markdown processor
Speak English properly.
Merge pull request #2298 from jekyll/release-post