Updated to 2.29.2.

Changes:
    Added: Existing post and upvote views on user admin page.
    Added: Support SMTP authentication and SSL with Net::SMTP.
    Added: Support HTTP::Tiny for reCAPTCHA.
    Added: Support HTTP::Tiny for attaching linked images.
    Changed: Misc. small changes.
    Fixed: Policy page redirection loop with CGI. [Andrea Bianchi]
    Fixed: Username autocompletion with CGI.
    Removed: Manual configuration of SMTP authentication mechanism.