Merge pull request #15714 from edx/nedbat/update-translations

cms/static/js/i18n/ar/djangojs.js

cms/static/js/i18n/eo/djangojs.js

cms/static/js/i18n/es-419/djangojs.js

cms/static/js/i18n/fake2/djangojs.js

cms/static/js/i18n/fr/djangojs.js

cms/static/js/i18n/he/djangojs.js

cms/static/js/i18n/ko-kr/djangojs.js

cms/static/js/i18n/pt-br/djangojs.js

cms/static/js/i18n/rtl/djangojs.js

cms/static/js/i18n/ru/djangojs.js

cms/static/js/i18n/zh-cn/djangojs.js

conf/locale/ar/LC_MESSAGES/django.mo

conf/locale/ar/LC_MESSAGES/django.po

conf/locale/ar/LC_MESSAGES/djangojs.mo

conf/locale/ar/LC_MESSAGES/djangojs.po

conf/locale/en/LC_MESSAGES/django.po

conf/locale/en/LC_MESSAGES/djangojs.po

conf/locale/eo/LC_MESSAGES/django.mo

conf/locale/eo/LC_MESSAGES/django.po

conf/locale/eo/LC_MESSAGES/djangojs.mo