The imap-proto crate has been merged into the tokio-imap repository (again). To be precise, tokio-imap commit 4a024f3d7a59550179f74c2737ddf1272c04f188 merges the imap-proto code as of 522f84d. The later commit 4ecd2f5fabbcd0e4d8e262832cf0b96d4003d62c was merged in 09848b9121cdcbbb64e1313b502094239c2fca44.

• Add parsing for SEARCH response returning a Vector of IDs (#19)
• Add basic support for continuation responses
• Add support for STATUS responses
• Return parser errors instead of panicking for invalid strings