Fix #1548
functions to attributes
replace functions in code
sandcastle
Merge branch 'master' into replaceGetSetContext
Tile, Credit, CentralBodySurface, AnimationCollection
terrain data
update CHANGES.md
pipe through functions
update code, tests
Remove unnecessary example code
Update CHANGES.md
fix doc
error cleanup
Tweak CHANGES.md
Tweak CHANGES.md
Cleanup
typo
move events to scene
fix tests