Some error messages in libgpod aren't translated

Some error messages in the following files aren't translatable because
they are missing the usual _( ) function call

./src/itdb_hashAB
./src/itdb_sqlite.c
./src/itdb_hash72.c
./src/itdb_hash58.c
./src/itdb_device.c
./src/itdb_plist.c

it's ok I if I change them?
I'm asking because we agreed that I would make "easy" changes to
gtkpod without asking, but I don't remember if we ever talked about
libgpod

-- 
Daniele Forsi

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