Prefer literal over HTML entity (#1346)

Literals are easier to read when viewing the source (don't need to
memorize code points). The files are encoded in UTF-8 and all modern
browser support UTF-8, so it is compatible.

Author: jdufresne

debug_toolbar/templates/debug_toolbar/base.html

@@ -8,7 +8,7 @@
      {{ toolbar.config.ROOT_TAG_EXTRA_ATTRS|safe }}>
   <div class="djdt-hidden" id="djDebugToolbar">
     <ul id="djDebugPanelList">
-      <li><a id="djHideToolBarButton" href="#" title="{% trans "Hide toolbar" %}">{% trans "Hide" %} &#187;</a></li>
+      <li><a id="djHideToolBarButton" href="#" title="{% trans "Hide toolbar" %}">{% trans "Hide" %} »</a></li>
       {% for panel in toolbar.panels %}
         {% include "debug_toolbar/includes/panel_button.html" %}
       {% endfor %}