bugfix gallery item styles for mobile
apply staging.html changes to others
update param range for stretch, tilt & shift ops, add more tilt presets
enable gallery for barbican
minor update object loader
extract layout & overview namespaces from node-edit ns
move toolbar/preset related fns into toolbar ns, update refs
bugfix editor/handle-release to also clear axis meshes
start integration of new/more compact tree node layout algorithm
memoize child-path lookups
finish impl of compact tree node layout (incl. applied to map overview)