Merged r1505, r1506, r1511, r1512, r1517, r1518, r1524 to 1526 from trunk.

git-svn-id: http://redmine.rubyforge.org/svn/branches/0.7-stable@1532 e93f8b46-1217-0410-a6f0-8f06a7374b81

lib/SVG/Graph/Graph.rb

@@ -829,7 +829,7 @@ module SVG
         @doc << DocType.new( %q{svg PUBLIC "-//W3C//DTD SVG 1.0//EN" } +
           %q{"http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd"} )
         if style_sheet && style_sheet != ''
-          @doc << ProcessingInstruction.new( "xml-stylesheet",
+          @doc << Instruction.new( "xml-stylesheet",
             %Q{href="#{style_sheet}" type="text/css"} )
         end
         @root = @doc.add_element( "svg", {

lib/redcloth.rb

@@ -1131,7 +1131,7 @@ class RedCloth < String
         end
     end
     
-    ALLOWED_TAGS = %w(redpre pre code)
+    ALLOWED_TAGS = %w(redpre pre code notextile)
     
     def escape_html_tags(text)
       text.gsub!(%r{<(\/?([!\w]+)[^<>\n]*)(>?)}) {|m| ALLOWED_TAGS.include?($2) ? "<#{$1}#{$3}" : "&lt;#{$1}#{'&gt;' unless $3.blank?}" }