Included in this release:
- Fixes for UUEncoding and Base64Encoding for larger files
- Save feature for messages (can both read and write out)
- Basic edit features -- setRawHeader and setContent for MimeParts (and messages)
- Direct parsing from strings (not just streams) and convenience method Message::from($stringOrHandle)
- Add/remove attachments, content parts
- Read multipart/signed messages (no verification)
- Create multipart/signed messages with Message::setAsMultipartSigned, Message::getSignableBody and Message::getSignaturePart