Added Spam FireWall

Merge pull request #13 from VladCleantalk/master

version 1.5

Minor changes

Merge pull request #8 from VladCleantalk/master

version 1.4

Minor fixes

Merge pull request #3 from VladCleantalk/master

version 1.4

Improved anti-spam protection

Merge pull request #2 from VladCleantalk/master

version 1.3

1.2: Merge pull request #1 from VladCleantalk/master

1.2

1.1

Update Antispam.php