Don't query GL_{MMAJOR,MINOR}_VERSION on WebGL 2.
Don't query GL_{MMAJOR,MINOR}_VERSION on WebGL 2.

It doesn't make any sense -- WebGL 2 doesn't provide any equivalent
functionality for this and so I don't even know what values should this
return (3.0? 2.0?). Instead I just check for "WebGL 2" string prefix and
treat it as ES 3.0.

ashimidashajia/magnum,MiUishadow/magnum,MiUishadow/magnum,DerThorsten/magnum,DerThorsten/magnum,ashimidashajia/magnum,MiUishadow/magnum,MiUishadow/magnum,MiUishadow/magnum,DerThorsten/magnum,MiUishadow/magnum,ashimidashajia/magnum,ashimidashajia/magnum,ashimidashajia/magnum,DerThorsten/magnum,DerThorsten/magnum