Fix for https://en.wikipedia.org/wiki/Wikipedia_talk:AutoWikiBrowser/Bugs#Hr_replacement_within_tables_inline

Revert to old version of SyntaxRegexHorizontalRule regex, checks for performance

Also tweaks to FixCitationTemplates
More test coverage for BoldTitle
More test coverage for BoldTitle
More test coverage for BulletExternalLinks
More test coverage for CompletePersonDataDate
More test coverage for Conversions
More test coverage for DuplicateUnnamedReferences, code comments
Remove unneeded (already done before) check
More test coverage for ExtractTemplate
More test coverage for FixDates
More test coverage for FixHeading
More test coverage for FixSmallTags
Remove unneeded duplicated logic
More test coverage for FixDates
Added Infobox handball biography in list of infoboxes about persons
Unit test with commented out references section
More test coverage for IsArticleAboutAPerson
More test coverage for IsArticleAboutAPerson
More test coverage for MergeTemplates
More test coverage for MultipleIssues