Warn on component names that contain uppercase characters (#2233)
Warn on component names that contain uppercase characters (#2233)

* warn on component names containing uppercase

* use standard style for linting

* pass linting

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