Added Captcha v2.0

Added Captcha v2.0 to hopefully help with spam. Anonymous users will need to enter in a string of letters or numbers before being able to submit a comment, post to the forum, contribute a story, etc. Logged in users should never see the captcha. Another benefit of creating an account and logging in will be member albums in the Media Gallery. I will be setting this up so you receive your own album to post your pictures in once you create an account.