Merge pull request #78 from yokose-ks/gacco2/master

Fix activation, email_change and password_reset message for service site
UPDATE UI for gacco
Merge pull request #80 from WatanabeYasumasa/gacco2/master

UPDATE UI for gacco
discussion modules on aio-8
Merge pull request #81 from skim-ks/gacco2/master

discussion modules on aio-8
Update po/mo files
Restore lms/static/sass/course/base/_base.scss