update showLine API
add function to showLine API
update
renamed, showLine to appendRegion
fix typo bug
add sample
add target param to containsRegions API
update samples
update setReactor API
update runShell API. become flat.
対応中
eventually, undo is not be supported.
support "undo" erase.
delete comment
testing
remove comment
renamed defineFilter&setReactor API param
update
updating
updating,