* lib/rdoc: Update to RDoc 4.1.0.preview.1

RDoc 4.1.0 contains a number of enhancements including a new default
  style and accessibility support.  You can see the changelog here:

  https://github.com/rdoc/rdoc/blob/v4.1.0.preview.1/History.rdoc

* test/rdoc:  ditto.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42971 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/rdoc/markup/parser.rb

@@ -389,7 +389,7 @@ class RDoc::Markup::Parser
         skip :NEWLINE
       when :TEXT then
         unget
-        parent << build_paragraph(indent)
+        parse_text parent, indent
       when *LIST_TOKENS then
         unget
         parent << build_list(indent)
@@ -405,6 +405,13 @@ class RDoc::Markup::Parser
 
   end
 
+  ##
+  # Small hook that is overridden by RDoc::TomDoc
+
+  def parse_text parent, indent # :nodoc:
+    parent << build_paragraph(indent)
+  end
+
   ##
   # Returns the next token on the stream without modifying the stream