This just add Koha::Letter[s] for later uses.
Test plan:
prove t/db_dependent/Koha/Notices.t
should return green
Signed-off-by: Josef Moravec <josef.moravec@gmail.com>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Jonathan Druart