weird bug fixed

sometimes shown on level reload with enemies on

at
objects::ExHero/handleBeginContact()[/Users/joepenzo/School/Afstuderen/P
roject/FinalGame/development/src/objects/ExHero.as:529]
		at
GameState/redrawLevel()[/Users/joepenzo/School/Afstuderen/Project/FinalG
ame/development/src/GameState.as:251]
		at
GameState/update()[/Users/joepenzo/School/Afstuderen/Project/FinalGame/d
evelopment/src/GameState.as:148]
		at
citrus.core::CitrusEngine/handleEnterFrame()[/Developer/Resources/action
script/CitrusEngine/Citrus-Engine-master/src/citrus/core/CitrusEngine.as
:319]
		at
citrus.core.starling::StarlingCitrusEngine/handleEnterFrame()[/Developer
/Resources/actionscript/CitrusEngine/Citrus-Engine-master/src/citrus/cor
e/starling/StarlingCitrusEngine.as:213]

'' if(contact.normal == null) return; // BUG FIX?'' Hero.as