Merge remote-tracking branch 'origin/master' into next

diff --cc doc/language_issues.de
Simple merge

diff --cc doc/language_issues.en
Simple merge

diff --cc doc/language_issues.es
Simple merge

diff --cc doc/language_issues.fr
Simple merge

diff --cc doc/language_issues.nl
Simple merge

diff --cc doc/language_issues.pl
Simple merge

diff --cc doc/language_issues.ru
Simple merge

diff --cc doc/language_issues.tr
Simple merge