v2.0.0

Improvements and fixes:

• Thanks to matthiasn the date parsing/generation on west of greenwich timezones now works properly.
• Improve automatic re-connecting when using the high-level MailClient API.
• Support timeouts for IMAP, SMTP and POP calls.
• MimeMessage:
  • Get an alternative mime part easier with MimePart? getAlternativePart(MediaSubtype subtype).
  • Retrieve all recipients via the List<MailAddress> get recipients getter.
  • Support decoding binary transfer-encoding for text message parts.
  • Introduce guid / global unique IDs which are set automatically when using the high-level MailClient.
  • Correctly unwrap header values before decoding them.
  • Accept headers that have no space after the colon-separator.
• Improve high level API support for OAUTH:
  • You can now define refresh and onConfigChanged callback methods when connecting to a mail service using MailClient.
• Support expunging messages when deleting them in MailClient with Future<DeleteResult> deleteMessages( MessageSequence sequence, {bool expunge = false}).
  OauthAuthentication now contains a complete OauthToken.
  main
• MessageBuilder: Access also text-attachments in the attachments getter.
• Only use STARTTLS when the IMAP service supports it.
• Simplify search API.

Breaking changes:

• Package structure is simplified, so that imports of specific classes are not possible anymore. Instead either import 'package:enough_mail/enough_mail.dart'; or one of the specializes sub-packages codecs.dart,discover.dart, highlevel.dart, imap.dart, mime.dart, pop.dart or smtp.dart.
• Authentication.passwordCleartext is renamed to Authentication.passwordClearText
• Mailbox API has changed specifically when creating mailboxes yourself.

Other:

• Improved code style, enforcing linting rules.
• Improve API documentation.
• Improve package structure
• Many further small-scale improvements.