Add update Chinese translation files
Re-run grun translate_sync task
Merge pull request #598 from flibbertigibbet/feature/add-translations

Feature/add translations
Allow calculating indicators on feed without service in all periods.

Fixes #585 (its underlying issue).
Returns zero results for all indicators on periods without service.
Merge pull request #601 from flibbertigibbet/feature/allow-no-weekend-service

Allow calculating indicators on feed without service in all periods.