Updated programming style.
Updated header comments.
Bumped the date.
Removed the closing PHP tag.
Dropped rah_comment_spam::get().
Updated comments.
Moved initialization to the bottom.
Dropped reliance to __CLASS__ magic constant.
rah_comment_spam::install() to non-static.
Creating preferences to memory is unnecessary.

There is no installer fallback to worry about.
Updated to JSON manifest.