Merge pull request #458 from vrusinov/master

Ignore PyCharm IDE project files.
Translated using Weblate (Breton)

Currently translated at 52.3% (520 of 994)
Merge remote-tracking branch 'origin/master'
Use http for translation widget as GitHub does not trust CAcert

Signed-off-by: Michal Čihař <michal@cihar.com>
Drop embedded copy of aresource for translate-toolkit

The translate-toolkit 1.11.0 contains all important changes, so there si
no need to ship separate version.

See also issue #459

Signed-off-by: Michal Čihař <michal@cihar.com>
Update po files