[tx-robot] updated from transifex

apps/bookmarks/l10n/ca.php

apps/bookmarks/l10n/de.php

apps/bookmarks/l10n/el.php

apps/bookmarks/l10n/sl.php

apps/calendar/l10n/el.php

apps/calendar/l10n/fi_FI.php

apps/contacts/l10n/el.php

apps/files/l10n/sl.php

apps/gallery/l10n/sl.php

l10n/ca/bookmarks.po

l10n/ca/lib.po

l10n/de/bookmarks.po

l10n/de/lib.po

l10n/de/settings.po

l10n/el/bookmarks.po

l10n/el/calendar.po

l10n/el/contacts.po

l10n/el/lib.po

l10n/el/settings.po

l10n/fi_FI/calendar.po