added keyword id to new file;
fixed spelling error in german language file of captcha modul
Added new CAPTCHA (calc_ttf_image). Changed call_captcha() to output a table-layout. Some minor changes to captcha-code.
Added preview-images for CAPTCHA. Improved security: CAPTCHAS can't be loaded from outside WB
Added keywords to files where they are missing
added new CAPTCHA and ASP (Advanced Spam Protection)