added honeypot to memberships and profile form.
Merge pull request #199 from fcurella/bugfix/honeypot-signups

added honeypot to memberships and profile form.
Download Changes

    - Added pre_release boolean option for Releases which will not use
      them for Download buttonss, but can still be displayed on the site
      normally

    - Added GPG Signature File (gpg_signature_file) URL field to link to
      release file signatures
Merge branch 'master' of github.com:python/pythondotorg