If banned list contains "word;" it rejects every message

See: http://joomlacode.org/gf/project/joomla/tracker/?action=TrackerItemEdit&tracker_item_id=32639&start=0
Update contactemail.php
Update contactemailsubject.php
Merge pull request #3066 from Hackwar/patch-4

If banned list contains "word;" it rejects every message