Edited task js file

Signed-off-by: Robert Weber <closingtag@gmail.com>
Added tests

Signed-off-by: Robert Weber <closingtag@gmail.com>
added rework and rework plugins

Signed-off-by: Robert Weber <closingtag@gmail.com>
Edited README

Signed-off-by: Robert Weber <closingtag@gmail.com>