Use gettext.h for pgettext()

Signed-off-by: bert <bert.timmerman@xs4all.nl>
Add strings to translation with context

Signed-off-by: Bert Timmerman <bert.timmerman@xs4all.nl>
Signed-off-by: bert <bert.timmerman@xs4all.nl>
Fixing a typo.

Signed-off-by: Bert Timmerman <bert.timmerman@xs4all.nl>
Signed-off-by: bert <bert.timmerman@xs4all.nl>