check debug filter at runShell API
add samples:terminal notifier

see
http://osxdaily.com/2012/08/03/send-an-alert-to-notification-center-from
-the-command-line-in-os-x/
fixing
rename param "comment" to "var"
remove debug code
remove unused API param
add API function "runnable" into playRegion API.
add sample
fix bug. replace works!
rename API:playRegions to containsRegions
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.