adjusted trackOverlay to new schema of positions stored in Track
first changes to avatar and popups
loads cached track data + binds popup to avatar
added referencing overlays from associated collectins and model + small renames
disabled load of track since temporarlry working without caching...
trying to reenable load
loads track overlay after track loads
name tweek getAvatarIcon -> getIcon
added PlacesOverlay
small tweeks to PlacesOverlay
clenup AvatarOverlay