Asus k40in: skype vertical flip webcam

Asus k40in vertically inverted image is corrected so (maybe will work in other laptops):

32bit:

install libv4l

env LD_PRELOAD=/usr/lib/libv4l/v4l1compat.so skype

64bit:

env LD_PRELOAD=/usr/lib32/libv4l/v4l1compat.so skype