global: unsigned int:1 -> bool:1 perl -i -pe 's/unsigned int ([^,:;]+):1;/bool $1:1;/' **/*.[ch]

lib-imap-urlauth: Added API for using the fetch interface with an already parsed IMAP URL object.

imap: Fixed segfault in URLFETCH command. Command would be cleaned up while requests were still pending, causing a segfault once a request finished. Added API determining whether the URLAUTH fetch interface still has pending requests.

lib-imap-urlauth: Fixed deinitialization of the URLAUTH fetch handler. Added reference counting to make sure callbacks will not deinitialize the handler prematurely.

lib-imap-urlauth: Fixed local URLAUTH fetches that didn't immediately finish handling content. Local requests are now also properly counted.

imap: URLFETCH error handling fixes.

Added support for IMAP URLAUTH and URLAUTH=BINARY extensions Extends imap service with URLAUTH and URLAUTH=BINARY support: - Adds new commands URLFETCH, GENURLAUTH and RESETKEY. Creates imap-urlauth service in src/imap-urlauth. Functionality common to both the imap and imap-urlauth services is located in src/lib-imap-urlauth. TODO: - use mailbox GUIDs instead of names - doveadm command to delete stale urlauth entries? - add delay when attempting to access nonexistent user - create urlauth-worker queue, similar to how indexer-worker works (could we share code?..)