added missing handlers for invalid property IDs

Signed-off-by: Carlos Rafael Giani <dv@pseudoterminal.org>
fixed caps string construction

Signed-off-by: Carlos Rafael Giani <dv@pseudoterminal.org>
dumbdec: printf format string fixes + cleanup

Signed-off-by: Carlos Rafael Giani <dv@pseudoterminal.org>
baseclass: fixed wrong state change

Signed-off-by: Carlos Rafael Giani <dv@pseudoterminal.org>
baseclass: initial position wasn't being passed around properly

Signed-off-by: Carlos Rafael Giani <dv@pseudoterminal.org>