XWIKI-4952: Allow anonymous commenting with captcha - I mistakenly made the dependency scope runtime when it is needed at compile time but the core will function without the captcha module and the core alone should not drag the captcha module into a project.
XWIKI-4952: Allow anonymous commenting with captcha - I mistakenly made the dependency scope runtime when it is needed at compile time but the core will function without the captcha module and the core alone should not drag the captcha module into a project.

git-svn-id: d23d7a6431d93e1bdd218a46658458610974b053@27537 f329d543-caf0-0310-9063-dda96c69346f

xwiki/xwiki-platform,pbondoer/xwiki-platform,pbondoer/xwiki-platform,xwiki/xwiki-platform,xwiki/xwiki-platform,pbondoer/xwiki-platform,pbondoer/xwiki-platform,xwiki/xwiki-platform,xwiki/xwiki-platform,pbondoer/xwiki-platform