LangTool injects old copyright

[fredck]

The copyright header introduced by the LangTool in the _translationstatus.txt file needs to be updated, otherwise it fires unnecessary and wrong changes to it.

Ideally the current year should be used on it, automatically.

[wwalc]

Copyrights were updated with [4855], however the jar file has not been recreated. Updated binary files with [4879].

Leaving as opened to always use current year in the copyright header.