Added preview-images for CAPTCHA. Improved security: CAPTCHAS can't be loaded from outside WB
fixed some issues with CAPTCHA and ASP: Adjusted baseline of '*' in supplyed fonts to meet baseline of numbers. Added counter to ttf_image generation-loop. Removed now unneeded GD-lib checks. Improved ASP in news-module.
Added keywords to files where they are missing
ttf-CAPTCHA: check if string is completely inside the image.
Added strongly "condensed" fonts with many intersections for ttf-CAPTCHA as default fonts. It should be very difficult for spam-bots to recognize intersected characters.
added new CAPTCHA and ASP (Advanced Spam Protection)