emacs based tests, version 3

Taking Dmitry's suggestions on board. The end result does indeed feel better, thanks! [PATCH 1/4] test: Add `test_emacs_expect_t'. [PATCH 2/4] test: Add address cleaning tests. [PATCH 3/4] emacs: Avoid `mail-header-parse-address' in [PATCH 4/4] emacs: Another special case for

emacs based tests, version 3

Taking Dmitry's suggestions on board. The end result does indeed feel better, thanks! [PATCH 1/4] test: Add `test_emacs_expect_t'. [PATCH 2/4] test: Add address cleaning tests. [PATCH 3/4] emacs: Avoid `mail-header-parse-address' in [PATCH 4/4] emacs: Another special case for