Log Message:
mail/fml: update to 7.99.1

7.99.1	subject MIME handling bug fixed.

	Sep 8, 2018, we have merged the following branch
	feature/utf8-mime-header-handling [2b9052aa..b9c2f6c2] into
	the master.  XXX Mail::Message::ToHTML is broken.  XXX
	Mail::Message::Outline may be broken.

	Also, we note that this is the initial point to release
	engineering process toward the release 8.0.0.

	(XXX)
	We plan to move non-core modules related on the mailing list
	core to aux/ (newly created) or 3rdparty/fml.org/FEATURE/ (as
	examples how to use at ./3rdparty/ directory).