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)

Feature/auth for allhands

# Conflicts:
#	.gitignore

* Add HandlebarsTemplatePlugin and asset helper.

* Recompile on template change.

* Fixed cloning gltf models.

* Clone material and change component order to fix matcolor-audio-feedback component.

* Renamed gltf-model2 -> cached-gltf-model. Named anonymous function.

## [Docs] README.md - content, separators, thumbnail, ToC, styling

<sub><b>the current PR does basically aim at:</b></sub>
- <sub><i>improving content</i></sub>
- <sub><i>separators</i></sub>
- <sub><i>thumbnail</i></sub>
- <sub><i>ToC</i></sub>
- <sub><i>styling</i></sub>

---

<sub><b>let's make the web better bit by bit!!!</b></sub>

<img src="https://orig00.deviantart.net/5b95/f/2016/070/3/b/mit_license_logo_by_excaliburzero-d9ur2lg.png" width="70"></img> <img src="https://pbs.twimg.com/profile_images/821735271049768960/jJZXlJwZ.jpg" width="50"></img> <img src="https://i.vimeocdn.com/portrait/8650129_300x300" width="50"></img> <img src="https://media.licdn.com/mpr/mpr/shrinknp_200_200/AAEAAQAAAAAAAAzgAAAAJDM5ZWE5N2JkLTdiOWQtNDA5OC04Y2U1LTMwN2ZiZDg3NTg0ZA.jpg" width="50"></img>

add back in name from query string. If you set a name from qs, it will not show prompt (prompts are broken on mobile)

* Add unlit material support using patched GLTFLoader.

* New environment