Fixed Issue #71 self blocking
Added a method for checking if a TwitterStatus
belongs to the current user or not.

When a User does an action( block or report as spam)
to a group of tweets where his own tweet is one of
them, I apply the action to all of them except his
own tweet.

Signed-off-by: R4md4c <ahmedibrahimkhali@gmail.com>
Merge pull request #224 from R4md4c/self-blocking

Fixed Issue #71 self blocking