add slides to Engine
clean up
fix object move
comment out console
remove unneeded buttons
comment out setObject
remove unused code
remove unused map controls and dead code
get rid of this artifact
fix #251
Fixed bug #250
fix slide panel, remove some errors and prints, identify and move globals into editor.js
Merge branch 'qa' into 3scape-simple
fix dvd controller
fix curr slide highlight
fix highlight for addSlide
add sortable
fix label
undo change for #252
fix ref error and move file load handler to editor