1.8 door fix

There was a problem with 1.8 spigot protocol update. Doors sudenly starts to break (especialy doubledoors) more at http://www.spigotmc.org/threads/1-8-protocol-doors-glitching.28572/#post-330072 

With Thinkofdeath's help there is a fix. It looks that it works on older versions of bukkit/spigot too