Parsoid/Language conversion/Preprocessor fixups/20170501

Article counts from the 20170501 dump. All wikis are done.

Note that false positives are possible. Fixes are only truly necessary when the broken construct is inside a template, wikilink  , or template argument.

There are a bunch of hits in wikidata, inside JSON blobs. They'd only need to be fixed up if they contained wikitext strings; help wanted from wikidata folks to look into that.

As User:DePiep is doing, please put your name in the "notes" column when you start working through a section in order to avoid duplicating work. Thank you!

Legend:
 * c: chemical-related articles
 * u: URLs -- All are done. -DePiep (talk) 13:32, 12 May 2017 (UTC)
 * o: other/misc articles
 * n: non-articles (everything outside namespace 0)