[TASK] Update PHPUnit to 4.4.*
[TASK] Update PHPUnit to 4.4.*

Closes #118

ernsto/emogrifier,Seldaek/emogrifier,iFixit/emogrifier,sanderkruger/emogrifier,OzzyCzech/emogrifier,MyIntervals/emogrifier,ricardofiorani/emogrifier,Synchro/emogrifier,jjriv/emogrifier