Update input mappings to use latest AFIM, with activators and behaviours

* Unoptimized water and skybox.

* Move waternormals texture to new assets folder

* Add cubemap skybox

* Water and skybox improvements WIP

* MobileWater shader (no reflections)

* Made water and skybox editable in aframe-inspector

* Remove cubemap component

* Load water normal map from preloaded asset for cdn compatibility.

moving spawn-controller component to player-rig

* Make handlebars template plugin more flexible. Add crc hash to urls. Add origin trials. Add smoketest.

* Add origin trial token documentation

* Update readme to use crc hash.

* Correct smoketest urls.

* Move templatre generation into common and add env var to generate smoke tests.

* Move vendor assets into separate bundle. Clean public directory on build. Extract and optimize css. Move back to Uglify.

* Fix extract text plugin in dev.

* Update CONFIG comment

* Added webpack file loader and lobby background.

* Copy assets directory into public folder on build. Fix file-loader config to point at copied folder.

* Fix for webpack-dev-server when copying assets.

* Fix setting environment variables on windows.

update spawn positions

moving all the logic into a component, simplifying the math (taken from: networked-aframe spawn-in-circle.component.js)

users will now randomly spawn around the table facing towards the center (may vary depending on headset configuration)