Squashed 'particlemap/' content from commit 10aa836

git-subtree-dir: particlemap
git-subtree-split: 10aa836d82da230ba1084dce9df93309142db411
Merge commit 'f2c524e0808563750b53bd755c3592b304eb5a29' as 'particlemap'
Squashed 'particlemap/' changes from 10aa836..c2d64eb

c2d64eb Move demo stuff to seperate demo repo

git-subtree-dir: particlemap
git-subtree-split: c2d64eb6ef82d6b5cf90d98ed26fda41616af904
Merge commit '34c45d63fb949df2a6f8f10343aca6939d5ca92b'