Fix iOS viewport issue
Fix iOS viewport issue

- Add maximum-scale=1 to fix iOS viewport scaling

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