Update draft release notes to 1.8.4
Update draft release notes to 1.8.4

For now, comment out the description on two "git status" UI
configuration, until the reverted topic can be resurrected.

Signed-off-by: Junio C Hamano <a6723cc3f76163bf7adb636a73ac3b0ceb3e6b9b@pobox.com>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git