Merge pull request #4734 from uclixnjupyternbaccessibility/issue-#3217

Added main/navigation tags to meet DAP requirements: issue #3217

.gitignore

@@ -35,7 +35,7 @@ src
 .idea/
 Read the Docs
 config.rst
-
+*.iml
 /.project
 /.pydevproject
 

notebook/templates/page.html

@@ -122,7 +122,7 @@ dir="ltr">
   </div>
 </noscript>
 
-<div id="header">
+<div id="header" role="navigation" aria-label="{% trans %}Top Menu{% endtrans %}">
   <div id="header-container" class="container">
   <div id="ipython_notebook" class="nav navbar-brand"><a href="{{default_url}}
     {%- if logged_in and token -%}?token={{token}}{%- endif -%}" title='{% trans %}dashboard{% endtrans %}'>

notebook/templates/tree.html

@@ -27,7 +27,7 @@ data-server-root="{{server_root}}"
 {% block site %}
 
   <div id="ipython-main-app" class="container">
-    <div id="tab_content" class="tabbable">
+    <div id="tab_content" class="tabbable" role="main">
       <ul id="tabs" class="nav nav-tabs">
         <li class="active"><a href="#notebooks" data-toggle="tab">{% trans %}Files{% endtrans %}</a></li>
         <li><a href="#running" data-toggle="tab">{% trans %}Running{% endtrans %}</a></li>