for wheel function, what is the value of WHEEL_DOWN and WHEEL_UP --- fixed: docs revised

[Unnati Joshi]

fixed: docs:
http://sikulix-2014.readthedocs.io/en/latest/region.html#Region.wheel
Java API: constants in class org.sikuli.script.Button
--------------------------------------------------

for wheel function, the direction has to to be int, what is the value to be assigned to WHEEL_DOWN and WHEEL_UP constants
values to be assigned to the cconstant variable WHEEL_DOWN and WHEEL_UP ?

[RaiMan (raimund-hocke)]

thanks for the pointer.
I revised the docs.