fixed events so that listeners can be removed
fixed events so that listeners can be removed

TonyGravagno/ScriptCraft,dighjd12/ScriptCraft,kzap/ScriptCraft,kzap/ScriptCraft,vorburger/ScriptCraft,ut7/ScriptCraft,achang6/ScriptCraft,mverwijs/ScriptCraft,walterhiggins/ScriptCraft,carlrobert/ScriptCraft,walterhiggins/ScriptCraft,dighjd12/ScriptCraft,EllieAdam/ScriptCraft,kamem/ScriptCraft,mverwijs/ScriptCraft,TonyGravagno/ScriptCraft,itrion/ScriptCraft,achang6/ScriptCraft,bgon/BlocklyCraft,EllieAdam/ScriptCraft,carlrobert/ScriptCraft,ut7/ScriptCraft,kamem/ScriptCraft,bgon/BlocklyCraft,bgon/BlocklyCraft,itrion/ScriptCraft,vorburger/ScriptCraft