merging PR #320: Use requestAnimationFrame in chaos canvas on website
merging PR #320: Use requestAnimationFrame in chaos canvas on website

https://github.com/chaosbot/Chaos/pull/320: Use requestAnimationFrame in chaos canvas on website

Description:
As recommended in #312 I have used requestAnimationFrame instead of setInterval which speeds up the canvas 

:ok_woman: PR passed with a vote of 8 for and 0 against, with a weighted total             of 8.0 and a threshold of 6.1.

Vote record:
@Leigende: 1
@Smittyvb: 1
@davidak: 1
@eukaryote31: 1
@jakejdavis: 1
@mark-i-m: 1
@phil-r: 1
@xfix: 1
hongaar/chaos,hongaar/chaos,Chaosthebot/Chaos,rudehn/chaos,chaosbot/Chaos,mpnordland/chaos,phil-r/chaos,eamanu/Chaos,hongaar/chaos,rudehn/chaos,botchaos/Chaos,botchaos/Chaos,botchaos/Chaos,phil-r/chaos,phil-r/chaos,chaosbot/Chaos,mpnordland/chaos,rudehn/chaos,Chaosthebot/Chaos,eamanu/Chaos,Chaosthebot/Chaos,amoffat/Chaos,mpnordland/chaos,mark-i-m/Chaos,botchaos/Chaos,mpnordland/chaos,mark-i-m/Chaos,amoffat/Chaos,rudehn/chaos,botchaos/Chaos,phil-r/chaos,hongaar/chaos,mark-i-m/Chaos,Chaosthebot/Chaos,Chaosthebot/Chaos,eamanu/Chaos,rudehn/chaos,chaosbot/Chaos,chaosbot/Chaos,mpnordland/chaos,chaosbot/Chaos,eamanu/Chaos,eamanu/Chaos,mark-i-m/Chaos,hongaar/chaos,amoffat/Chaos,mark-i-m/Chaos,amoffat/Chaos,amoffat/Chaos,phil-r/chaos