Squashed 'QualityRatings/DFWikiFunctions/' changes from d96bc0b..22ff2e5

22ff2e5 Add AccountCaptcha
8d54443 Add AccountCaptcha
72882a0 Squashed 'extensions/AccountCaptcha/' content from commit eddd4bc

git-subtree-dir: QualityRatings/DFWikiFunctions
git-subtree-split: 22ff2e590bc92480633ca470e174feef65ecd09b
Update DFWikiFunctions; add AccountCaptcha

Merge commit '5192365bb5b5ac581a19b549ebc5cc7f018aed75'