Move 'util::content_size_pretty' into 'acs-lang' and rename it to 'lc_content_size_pretty', localicing 'bytes' and adapting automated tests. Bump 'acs-lang' version.
Bring back to life edit-history page: - fix oracle-only limit idiom - link the page to the UI (again?). Will be in acs-lang/admin - provide message key for the UI