Add test for detachment and re-attachment.
Add test for detachment and re-attachment.

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