Issue 820

Fixes BOT issue: http://code.google.com/p/otwarchive/issues/detail?id=820

Moved validation out of the view file. Changed the user abuse_report mailer. Only one (1) 16 bugs report should be generated, and this should happen only when the message "Your abuse report was sent to the Abuse team." appears on the user's screen. Regardless of the number of times you attempt to do things that result in errors on the form. Abuse will have to confirm this.