stats: Save unused stats after translation

If we select a subfile for translation and writeback
the stats on exit, we'll lose the stats of the words that
weren't on the subfile we've selected.

Make sure we save all of them.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
cleanups: Various Eclipse automatic code cleanups

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>