cam follows lollipop wip
Merge remote-tracking branch 'origin/master' into lollicam
camera follow wip: pass also the scene pos when lollipop pos changes
followcam wip: jump to the end pan directly, seems correct
animate panning of camera to new pos following lollipop/av mova.
copy-pasted Lasse's eased animation from user-presence and modified to use
three vectors in the math.
Merge branch 'lollicam'
camera: abort animation upon manual panning
new camera initial position & lookat-target
abort cam animation also when dollying manually
Revert "new camera initial position & lookat-target"

This reverts commit ddbe27e814f14bfd5fe62e4422e6890bda0227ea.

Reason: buildings & ludo's building animating shader stopped working,
didn't find out quickly why.
Revert "Revert "new camera initial position & lookat-target""

This reverts commit b06033e9c59f4027c81ce6b99be0f29b6ead53ea.
Raised labels higher.
Added 'National Museum' label.
camcontrol: set maxPolarAngle. now allows going low near the ground but
not below
abort cam anim also when rotating view..
raycast.js added
Added start menu to demo. Updated icon graphics.
Added missing js file.
Added value to LollipopMenu.js
Merge branch 'master' of https://github.com/playsign/fidemo
cleanup main.js: remove commented out to create the scene here