Fix: deb packaging for N9

Signed-off-by: Miroslav Safr <Miroslav.Safr@gmail.com>
Fix: colors only for supported terms (N9 fix)
New: extenssions ingore cases
Fix: pptfind check ppthtml dependency (N9 fix)

Signed-off-by: Miroslav Safr <Miroslav.Safr@tieto.com>