sublime-project: added exclusions for root folder.
CSS: added .separator-inner, reformatted.
Removed invalid pubdate attr from banner.
Removed obsoleted <hgroup> from headline.
PRs: added `game/2013-09-30-prince-of-qin-a-flawed-wonder.html`.

Post revisions:

* `game/2013-09-30-prince-of-qin-a-flawed-wonder.html`:
	- I did it!
	- Yes, you did.
	- It has a lot of images.