D18317: Don't fail if defaultLanguage dictionary can't be loaded

[Nathaniel Graham]

ngraham added a reviewer: loh.tar.

REPOSITORY
  R246 Sonnet

REVISION DETAIL
  https://phabricator.kde.org/D18317

To: ahmadsamir, sandsmark, loh.tar
Cc: kde-frameworks-devel, michaelh, ngraham, bruns