Merged concurrent changes.

Makefile.am

TODO

configure.in

src/lib-sieve/cmd-redirect.c

src/lib-sieve/ext-reject.c

src/lib-sieve/plugins/enotify/cmd-notify.c

src/lib-sieve/plugins/enotify/ext-enotify-common.c

src/lib-sieve/plugins/enotify/ext-enotify-common.h

src/lib-sieve/plugins/enotify/ntfy-mailto.c

src/lib-sieve/plugins/enotify/sieve-ext-enotify.h

src/lib-sieve/plugins/vacation/cmd-vacation.c

src/lib-sieve/rfc2822.c

src/lib-sieve/rfc2822.h

src/sieve-tools/sieve-exec.c

tests/extensions/enotify/errors.svtest

tests/extensions/enotify/errors/url-mailto.sieve

tests/extensions/enotify/errors/url.sieve

tests/extensions/vacation/references.sieve

tests/extensions/vacation/references.svtest