fix AEntity.is for when state is 0th index
fix AEntity.is for when state is 0th index

MatthewShotton/aframe,RSpace/aframe,aframevr/aframe,jaxmolina/ar,chenzlabs/aframe,jzitelli/aframe,mkungla/aframe,RSpace/aframe,googlecreativelab/aframe,weddingdj/aframe,MatthewShotton/aframe,fernandojsg/aframe,msimpson/aframe,wizgrav/aframe,dmarcos/aframe,wizgrav/aframe,msimpson/aframe,darkwing/aframe,ngokevin/aframe,ngokevin/aframe,googlecreativelab/aframe,weddingdj/aframe,aframevr/aframe,fernandojsg/aframe,dmarcos/aframe,jzitelli/aframe,darkwing/aframe,mkungla/aframe,jaxmolina/ar,chenzlabs/aframe