Log Message:
Update milter-manager to 2.0.0.

== [release-2-0-0] 2.0.0: 2013-07-25

A bug fix release of 1.8.9.

=== milter-test-server

==== Improvements

  * Support multiline header

=== Ruby milter

==== Fixes

  * Fix a bug that reject/temporary failure on envelope recipient
    calls reset.