Sisimai::Address was born again

• Sisimai::Address was born again: import Pull-Request sisimai/p5-sisimai#231
  • Implement new email address parser method: find()
  • Implement new constructor: make()
  • Implement new writable accessors: name() and comment()
  • parse() method was marked as obsoleted
• Require Oj 3.0.0 or later. Build test fails when the version of installed Oj is 2.18. on CRuby.*
• Tested on JRuby 9.1.9.0.
• Fix wrong constant name in Sisimai::Rhost::ExchangeOnline reported at issue #77. Thanks to @rdeavila.
• Improved code in Sisimai::Message::Email to avoid an exception reported at issue #82. Thanks to @hiroyuki-sato.
• Fixed wrong bitwise operation in Sisimai::RFC3464 for getting the original message part Thanks to @hiroyuki-sato.