CSS: added `clear: both` to .header-info-banner.author-banner.¹

1: This ensures nothing can bleed into the banner from above. I think.
_layouts: added series-post layout for tying up related posts.
PRs: 1: `*`.

* 1:
	- Replaced all quotation mark escape codes with their actual characters!
	- Woo.
PRs: 1: `fiction/2012-07-11-all-out.html`, `fiction/2013-08-05-quiddlopolis-part-1.html`.

* 1:
	- Switched to series-post layout and linked up the two posts.
CSS: added .rotate-90 transformer.
PRs: 1: added `2014-11-23-quiddlopolis-part-2.html`; 2: `2013-08-05-quiddlopolis-part-1.html`

* 1:
	- A continuation. And some experimentation.

* 2:
	- Linked to Part 2.