* lib/rake: Update to rake 10.4.0

* test/rake:  ditto.
* NEWS:  ditto.

* test/lib/minitest/unit.rb:  Add compatibility shim for minitest 5.
  This only provides minitest 5 unit test naming compatibility.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48560 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/rake/late_time.rb

@@ -0,0 +1,17 @@
+module Rake
+  # LateTime is a fake timestamp that occurs _after_ any other time value.
+  class LateTime
+    include Comparable
+    include Singleton
+
+    def <=>(other)
+      1
+    end
+
+    def to_s
+      '<LATE TIME>'
+    end
+  end
+
+  LATE = LateTime.instance
+end