added FloatingOrigin to preserve precision in huge worlds
Improved label helper, added point picking to georeferencing example
progress on measurement and profiles; aded TextSprite
progress on profile
progress in profile tool
progress on measuring; refactoring
added a georeferencing example
finished georeferencing example
load near nodes first
trying difference encoding
finished examples, added point cloud for georef examples
deleted some temporary examples
minor stuff
Merge pull request #57 from potree/georeferencing

Georeferencing
added color property to PointCloudColorMaterial
height material now displays a gradient
made laslaz optional