global: Adjust to settings API changes

src/lib-sieve-tool/sieve-tool.c

src/lib-sieve/sieve-message.c

src/lib-sieve/storage/ldap/sieve-ldap-storage-settings.c

src/lib-sieve/util/edit-mail.c

src/lib-sieve/util/mail-raw.c

src/managesieve-login/client.c

src/managesieve/main.c

src/managesieve/managesieve-capabilities.c

src/managesieve/managesieve-client.c

src/testsuite/testsuite-mailstore.c