Add Pandoc’s readme for testing.
Filter Pandoc’s readme through Pandoc 1.11.
Remove paragraph that is not stable on subsequent conversions via Pandoc.
Test conversion of Pandoc’s readme via Pandoc’s JSON format.
Try filtering Pandoc’s JSON through texts.js.

Fails with error “Unable to read String”.
[pandoc] Isolate Pandoc JSON conversion issue.
[pandoc] Import quotes with hyperlinks.
[pandoc] Test conversion of footnotes in quotations.
Merge branch 'pandoc-1.11'