prison - a barcode library now in kdereview

[Sune Vuorela]

Hi peoples

I have added prison (git clone kde:prison) to kdereview, targetting
kdesupport.

Please review.

I'm having a couple of doxygen warnings that I'm unsure how to deal
with:
prison/testapp/prison.h:17: warning: Member data_changed() (slot) of
class main_window is not documented
(and similar. this is just 'test code' to see that it works)

prison/lib/prison/abstractbarcode.h:95: warning: return type of member
prison::AbstractBarcode::d is not documented


My library doesn't use i18n, so no Messages.

Please comment along.

/Sune