Support itex2MML 1.3.12

app/views/wiki/tex.rhtml

@@ -4,6 +4,7 @@
 \usepackage{amsfonts}
 \usepackage{amssymb}
 \usepackage{amsthm}
+\usepackage{mathtools}
 <%- if @tex_content =~  /\\mathbb\{[^}]*[a-z0-9]+[^}]*\}/ -%>
 \usepackage{mathbbol}
 <% end -%>

test/functional/wiki_controller_test.rb

@@ -930,6 +930,7 @@ class WikiControllerTest < ActionController::TestCase
 \usepackage{amsfonts}
 \usepackage{amssymb}
 \usepackage{amsthm}
+\usepackage{mathtools}
 !
     @tex_header2 = %q!\usepackage{graphicx}
 \usepackage{color}

test/unit/page_renderer_test.rb

@@ -211,6 +211,13 @@ END_THM
   end
   
   def test_have_latest_itex2mml  
+
+      assert_markup_parsed_as(
+        %{<p>equation <math class='maruku-mathml' displa} +
+        %{y='inline' xmlns='http://www.w3.org/1998/Math/} +
+        %{MathML'><mi>A</mi><mo>\342\211\224</mo><mi>B</} +
+        %{mi></math></p>},
+        "equation $A \\coloneqq B$")
   
       assert_markup_parsed_as(
         %{<p>equation <math class='maruku-mathml' displa} +