Well, this is a big one. Here are all the changes:

• Display password hints directly on the web, as long as SMTP is not in use. Can be disabled setting INVITATIONS_ALLOWED to false
• SMTP integration, for now only for sending password hints
• Musl docker image
• ARMv7 docker image
• Travis CI integration
• Basic support for KDF prelogin and notification negotiation
• Add IP and username to failed login attempts
• Support passsword history
• Updated web-vault to 2.2
• Cipher import in organizations