dooble and dooble-qt4 shares files via dooble-common

Signed-off-by: Mattias Andrée <maandree@operamail.com>
dooble and dooble-qt4 share translation files via dooble-common

Signed-off-by: Mattias Andrée <maandree@operamail.com>
dooble and dooble-qt4 are no longer self-contained packages

Signed-off-by: Mattias Andrée <maandree@operamail.com>