Run format.py

The rendered output has been manually verified to be identical.
Manually indent </script> and </style>

format.py isn't smart enough to get these right.
Merge pull request #117 from foolip/reformat

Run format.py
Unindent WebIDL to match HTML

https://html5.org/r/8808
Merge pull request #122 from foolip/unindent-webidl

Unindent WebIDL to match HTML
Merge commit 'e7758e6d48e12cacc48c6fe730bd018009196ec6' into position-size-align

Conflicts:
	webvtt.html
Merge commit '25abfc3092abf65c3e23e16235dc375a7af7edcd' into position-size-align

Conflicts:
	webvtt.html