Update expected test files

In doing a clean npm install, several dependencies were upgraded to
their latest versions, resulting in changes in the expected test
files.

Let's update these as such.

test/functional/test_site/expected/index.html

@@ -219,17 +219,17 @@ <h1 id="heading-with-multiple-keywords">Heading with multiple keywords<a class="
           <p><span class="keyword">keyword 1</span>
             <span class="keyword">keyword 2</span></p>
           <h1 id="heading-with-keyword-in-panel">Heading with keyword in panel<a class="fa fa-anchor" href="#heading-with-keyword-in-panel" onclick="event.stopPropagation()"></a></h1>
-          <panel expanded=""><template slot="_header">
+          <panel expanded><template slot="_header">
               <p>Panel with keyword</p>
             </template>
             <span class="keyword">panel keyword</span></panel>
           <p><strong>Panel with heading with keyword</strong></p>
-          <panel expanded="" id="panel-with-heading"><template slot="_header">
+          <panel expanded id="panel-with-heading"><template slot="_header">
               <h1 id="panel-with-heading">Panel with heading<a class="fa fa-anchor" href="#panel-with-heading" onclick="event.stopPropagation()"></a></h1>
             </template>
             <span class="keyword">panel keyword</span></panel>
           <p><strong>Expanded panel without heading with keyword</strong></p>
-          <panel expanded="" id="panel-without-heading-with-keyword"><template slot="_header">
+          <panel expanded id="panel-without-heading-with-keyword"><template slot="_header">
               <h1 id="panel-without-heading-with-keyword">Panel without heading with keyword<a class="fa fa-anchor" href="#panel-without-heading-with-keyword" onclick="event.stopPropagation()"></a></h1>
             </template>
             <h1 id="keyword-should-be-tagged-to-this-heading-not-the-panel-heading">Keyword should be tagged to this heading, not the panel heading<a class="fa fa-anchor" href="#keyword-should-be-tagged-to-this-heading-not-the-panel-heading" onclick="event.stopPropagation()"></a></h1>
@@ -330,16 +330,16 @@ <h4 id="focus-groups">Focus groups<a class="fa fa-anchor" href="#focus-groups" o
           <p><strong>Boilerplate include</strong></p>
           <div name="Boilerplate Referencing">
             <p>
-              <panel src="/test_site/requirements/UserStories._include_.html" no-close=""><template slot="_header">
+              <panel src="/test_site/requirements/UserStories._include_.html" no-close><template slot="_header">
                   <p>Boilerplate Includes</p>
                 </template></panel>
             </p>
           </div>
           <div name="Referencing specified path in boilerplate">
             <h1 id="path-within-the-boilerplate-folder-is-separately-specified">Path within the boilerplate folder is separately specified<a class="fa fa-anchor" href="#path-within-the-boilerplate-folder-is-separately-specified" onclick="event.stopPropagation()"></a></h1>
             <p>Like static include, pages within the site should be able to use files located in folders within boilerplate.</p>
-            <p>Also, the boilerplate file name (e.g. <code v-pre="">inside.md</code>) and the file that it is supposed to act as (<code v-pre="">notInside.md</code>) can be different.</p>
-            <p>This file should behaves as if it is in the <code v-pre="">requirements</code> folder:</p>
+            <p>Also, the boilerplate file name (e.g. <code v-pre>inside.md</code>) and the file that it is supposed to act as (<code v-pre>notInside.md</code>) can be different.</p>
+            <p>This file should behaves as if it is in the <code v-pre>requirements</code> folder:</p>
             <panel src="/test_site/requirements/NonFunctionalRequirements._include_.html"><template slot="_header">
                 <p>Tested with the folllowing include</p>
               </template>
@@ -368,7 +368,7 @@ <h1 id="path-within-the-boilerplate-folder-is-separately-specified">Path within
             <p><em>MarkBind supports .mbd files.</em></p>
           </div>
           <div>
-            <p><code v-pre="">MarkBind supports .mbdf files.</code></p>
+            <p><code v-pre>MarkBind supports .mbdf files.</code></p>
           </div>
           <p><strong>Include from another Markbind site</strong></p>
           <div>
@@ -544,55 +544,55 @@ <h2 id="feature-list">Feature list<a class="fa fa-anchor" href="#feature-list" o
               Heading
             </span></panel>
           <p><strong>Panel without src</strong></p>
-          <panel expanded="" id="panel-without-src-header"><template slot="_header">
+          <panel expanded id="panel-without-src-header"><template slot="_header">
               <h2 id="panel-without-src-header">Panel without src header<a class="fa fa-anchor" href="#panel-without-src-header" onclick="event.stopPropagation()"></a></h2>
             </template>
             <div>
               <p><strong>Panel without src content heading</strong></p>
             </div>
           </panel>
           <p><strong>Panel with normal src</strong></p>
-          <panel src="/test_site/testPanels/PanelNormalSource._include_.html" expanded="" id="panel-with-normal-src-header"><template slot="_header">
+          <panel src="/test_site/testPanels/PanelNormalSource._include_.html" expanded id="panel-with-normal-src-header"><template slot="_header">
               <h2 id="panel-with-normal-src-header">Panel with normal src header<a class="fa fa-anchor" href="#panel-with-normal-src-header" onclick="event.stopPropagation()"></a></h2>
             </template></panel>
           <p><strong>Panel with src from a page segment</strong></p>
-          <panel src="/test_site/testPanels/PanelSourceContainsSegment._include_.html#segment" expanded="" fragment="segment" id="panel-with-src-from-a-page-segment-header"><template slot="_header">
+          <panel src="/test_site/testPanels/PanelSourceContainsSegment._include_.html#segment" expanded fragment="segment" id="panel-with-src-from-a-page-segment-header"><template slot="_header">
               <h2 id="panel-with-src-from-a-page-segment-header">Panel with src from a page segment header<a class="fa fa-anchor" href="#panel-with-src-from-a-page-segment-header" onclick="event.stopPropagation()"></a></h2>
             </template></panel>
           <p><strong>Panel with boilerplate</strong></p>
-          <panel src="/test_site/testPanels/boilerTestPanel._include_.html" expanded="" id="boilerplate-referencing"><template slot="_header">
+          <panel src="/test_site/testPanels/boilerTestPanel._include_.html" expanded id="boilerplate-referencing"><template slot="_header">
               <h2 id="boilerplate-referencing">Boilerplate referencing<a class="fa fa-anchor" href="#boilerplate-referencing" onclick="event.stopPropagation()"></a></h2>
             </template></panel>
-          <panel src="/test_site/testPanels/notInside._include_.html" expanded="" id="referencing-specified-path-in-boilerplate"><template slot="_header">
+          <panel src="/test_site/testPanels/notInside._include_.html" expanded id="referencing-specified-path-in-boilerplate"><template slot="_header">
               <h2 id="referencing-specified-path-in-boilerplate">Referencing specified path in boilerplate<a class="fa fa-anchor" href="#referencing-specified-path-in-boilerplate" onclick="event.stopPropagation()"></a></h2>
             </template></panel>
           <p><strong>Nested panel</strong></p>
-          <panel src="/test_site/testPanels/NestedPanel._include_.html" expanded="" id="outer-nested-panel"><template slot="_header">
+          <panel src="/test_site/testPanels/NestedPanel._include_.html" expanded id="outer-nested-panel"><template slot="_header">
               <h2 id="outer-nested-panel">Outer nested panel<a class="fa fa-anchor" href="#outer-nested-panel" onclick="event.stopPropagation()"></a></h2>
             </template></panel>
           <p><strong>Nested panel without src</strong></p>
-          <panel expanded="" id="outer-nested-panel-without-src"><template slot="_header">
+          <panel expanded id="outer-nested-panel-without-src"><template slot="_header">
               <h2 id="outer-nested-panel-without-src">Outer nested panel without src<a class="fa fa-anchor" href="#outer-nested-panel-without-src" onclick="event.stopPropagation()"></a></h2>
             </template>
             <p><strong>Panel content of outer nested panel</strong></p>
-            <panel expanded="" id="inner-panel-header-without-src"><template slot="_header">
+            <panel expanded id="inner-panel-header-without-src"><template slot="_header">
                 <h2 id="inner-panel-header-without-src">Inner panel header without src<a class="fa fa-anchor" href="#inner-panel-header-without-src" onclick="event.stopPropagation()"></a></h2>
               </template>
               <p><strong>Panel content of inner nested panel</strong></p>
             </panel>
           </panel>
           <p><strong>Panel with src from another Markbind site</strong></p>
-          <panel src="/test_site/sub_site/index._include_.html" expanded="" id="panel-with-src-from-another-markbind-site-header"><template slot="_header">
+          <panel src="/test_site/sub_site/index._include_.html" expanded id="panel-with-src-from-another-markbind-site-header"><template slot="_header">
               <h2 id="panel-with-src-from-another-markbind-site-header">Panel with src from another Markbind site header<a class="fa fa-anchor" href="#panel-with-src-from-another-markbind-site-header" onclick="event.stopPropagation()"></a></h2>
             </template></panel>
-          <panel src="/test_site/sub_site/testReuse._include_.html" expanded="" id="panel-with-src-from-another-markbind-site-header-2"><template slot="_header">
+          <panel src="/test_site/sub_site/testReuse._include_.html" expanded id="panel-with-src-from-another-markbind-site-header-2"><template slot="_header">
               <h2 id="panel-with-src-from-another-markbind-site-header-2">Panel with src from another Markbind site header<a class="fa fa-anchor" href="#panel-with-src-from-another-markbind-site-header-2" onclick="event.stopPropagation()"></a></h2>
             </template></panel>
         </div>
         <p><strong>Modal with panel inside</strong></p>
         <p><span for="modal-with-panel" v-b-popover.hover.top.html="popoverGenerator" v-b-tooltip.hover.top.html="tooltipContentGetter" v-on:mouseover="$refs['modal-with-panel'].show()" class="trigger">trigger</span></p>
-        <b-modal id="modal-with-panel" hide-footer="" size="" modal-class="mb-zoom" ref="modal-with-panel"><template slot="modal-title">modal title with panel inside</template>
-          <panel expanded="" id="panel-inside-modal"><template slot="_header">
+        <b-modal id="modal-with-panel" hide-footer size modal-class="mb-zoom" ref="modal-with-panel"><template slot="modal-title">modal title with panel inside</template>
+          <panel expanded id="panel-inside-modal"><template slot="_header">
               <h2 id="panel-inside-modal">Panel inside modal<a class="fa fa-anchor" href="#panel-inside-modal" onclick="event.stopPropagation()"></a></h2>
             </template>
             <p><strong>Panel content inside modal</strong></p>
@@ -603,7 +603,7 @@ <h2 id="panel-inside-modal">Panel inside modal<a class="fa fa-anchor" href="#pan
             <h2 id="unexpanded-panel-header">Unexpanded panel header<a class="fa fa-anchor" href="#unexpanded-panel-header" onclick="event.stopPropagation()"></a></h2>
           </template>
           <p><strong>Panel content of unexpanded panel should not appear in search data</strong></p>
-          <panel expanded="" id="panel-header-inside-unexpanded-panel-should-not-appear-in-search-data"><template slot="_header">
+          <panel expanded id="panel-header-inside-unexpanded-panel-should-not-appear-in-search-data"><template slot="_header">
               <h2 id="panel-header-inside-unexpanded-panel-should-not-appear-in-search-data">Panel header inside unexpanded panel should not appear in search data<a class="fa fa-anchor" href="#panel-header-inside-unexpanded-panel-should-not-appear-in-search-data" onclick="event.stopPropagation()"></a></h2>
             </template>
             <p><strong>Panel content inside unexpanded panel should not appear in search data</strong></p>
@@ -653,9 +653,9 @@ <h2 class="no-index" id="level-2-header-inside-headingsearchindex-with-no-index-
         <h6 class="always-index" id="level-6-header-outside-headingsearchindex-with-always-index-attribute-should-be-indexed">Level 6 header (outside headingSearchIndex) with always-index attribute should be indexed<a class="fa fa-anchor" href="#level-6-header-outside-headingsearchindex-with-always-index-attribute-should-be-indexed" onclick="event.stopPropagation()"></a></h6>
         <p><strong>Test nunjucks raw tags</strong></p>
         <p></p>
-        <div v-pre="">{{ variable interpolation syntax can be used with v-pre }}</div>
-        <div v-pre="">{{ nonExistentVariable }}</div>
-        <code v-pre="">{{ code elements should automatically be assigned v-pre }}</code>
+        <div v-pre>{{ variable interpolation syntax can be used with v-pre }}</div>
+        <div v-pre>{{ nonExistentVariable }}</div>
+        <code v-pre>{{ code elements should automatically be assigned v-pre }}</code>
         <p></p>
         <hr class="footnotes-sep">
         <section class="footnotes">