Merge pull request #391 from TheMardy/master

src/config.rs

src/mail.rs

src/static/templates/email/invite_accepted.html.hbs

src/static/templates/email/invite_confirmed.hbs

src/static/templates/email/invite_confirmed.html.hbs

src/static/templates/email/pw_hint_none.html.hbs

src/static/templates/email/pw_hint_some.html.hbs

src/static/templates/email/send_org_invite.html.hbs