Quick Fixes and the like

1) moves more of the multiple of email check regex's to the validator, there are still a couple around
2) adds email verification to the paid subscriptions notification setting 
3) allow parameter passing to the sanitation function, its a special case thing but for completeness
4) minor update to the bbcode js, basically it will help if you past a couple of seldom used tags from another post this will convert them to bbc correctly