This is currently not used, but prevents mishaps once such code is written.

This is not currently used, but the absence of the call could cause memory leaks
in the future.

This indicates whether the last script in the sequence is being executed.

lib-sieve: store action: Allow side-effects to change the mailbox identifier used in action logging.

This way, the execution order can be made explicit.

Before it always used the name of the action definition, which is confusing e.g.
for the keep and fileinto actions, which both map to the same "store" action
definition.

Dovecot core doesn't have copyright notices in header files.

Now using struct smtp_address rather than sieve_address.
In some cases, struct message_address may prove to be more suitable, but this is the best fit for now.
Adjusted to the renamed fields in struct mail_deliver_context.

Found with clang -Wstrict-bool.

Found with clang -Wstrict-bool.

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

lib-sieve: Renamed sieve_runtime_flags to sieve_execute_flags and made these available to result execution.

lib-sieve: Restructured result execution, so that all actions which involve mail storage are always committed before all others.