* lib/rdoc*: Updated to RDoc 4.0 (pre-release)

* bin/rdoc:  ditto
* test/rdoc:  ditto
* NEWS:  Updated with RDoc 4.0 information


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37889 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/rdoc/markup/hard_break.rb

@@ -0,0 +1,31 @@
+##
+# A hard-break in the middle of a paragraph.
+
+class RDoc::Markup::HardBreak
+
+  @instance = new
+
+  ##
+  # RDoc::Markup::HardBreak is a singleton
+
+  def self.new
+    @instance
+  end
+
+  ##
+  # Calls #accept_hard_break on +visitor+
+
+  def accept visitor
+    visitor.accept_hard_break self
+  end
+
+  def == other # :nodoc:
+    self.class === other
+  end
+
+  def pretty_print q # :nodoc:
+    q.text "[break]"
+  end
+
+end
+