Squashed 'extensions/AccountCaptcha/' changes from 8fd21ab..5751b91

5751b91 Bump to v0.1.1
2eca898 Hide Special:AccountCaptcha from Special:SpecialPages

git-subtree-dir: extensions/AccountCaptcha
git-subtree-split: 5751b914b197ae048d8987b907dd49ea0b5307b4
Update AccountCaptcha

Merge commit 'b43397736467aa1657139ef0103d8b9e621eabe8'