v1.2.0

• Switch TopLevelDomain from an enum to a class, allowing for creation of any valid top level domain (Thanks @bowbahdoe!)
• Add module-info.java so projects on JDK 9+ can use this library as a Java module
• Bugfix: Addresses with empty quoted strings (""@test.org) are now correctly considered valid
• Bugfix: Addresses with explicit source routing (@1st.relay,@2nd.relay:user@final.domain) are now considered valid. However, explicit source routing is deprecated since RFC 5321. JMail.strictValidator() disallows explicit source routing by default
• Bugfix: Addresses with quoted identifiers (John Smith <John@smith.com>) are now correctly considered valid
• New properties on the Email object:
  • identifier()
  • hasIdentifier()
  • explicitSourceRoutes()