[auscaster]

Fixes #117.

Since the move to cheerio 1.x, a fragment comes back as a full document:

await inlineCss('<div class="a">Hi</div><style>.a { color: red; }</style>', { url: 'file:///' })
// before: '<html><head></head><body><div class="a" style="color: red;">Hi</div></body></html>'
// after:  '<div class="a" style="color: red;">Hi</div>'

cheerio 1.x parses input as a document unless load is told otherwise by its third argument. lib/inline-css.js, style-data and list-stylesheets now pass false for that argument unless the input has a doctype or an html, head or body tag, so full documents parse exactly as before. All three needed it, because each stage parses and serialises the html again.

Each of the three suites has a new test for a fragment, and all three fail without the change. Every existing fixture is a full document, and all 66 tests pass. The changeset bumps all three packages as a patch.