Tidy up HTML and get rid of needless whitespace

Not the end of the world but now it's slightly prettier to look at.
Plus, you know, bytes. It adds up when generating thousands of files.

Change-Id: I9ee97117dec25ede4eb8a786748e39a70fe208f7

ara/templates/navbar.html

@@ -1,3 +1,4 @@
+<!-- Begin navbar -->
 <nav class="navbar navbar-default navbar-pf" role="navigation">
     <div class="navbar-header">
         <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse-1">
@@ -17,22 +18,23 @@
             <li><a href="https://www.ansible.com/" target="_blank"><strong>Ansible</strong> {{ ansible_version }}</a></li>
         </ul>
         <ul class="nav navbar-nav navbar-primary">
-            {% if active and active == 'home' %}
+            {% if active and active == 'home' -%}
             <li class="active">
-            {% else %}
+            {% else -%}
             <li>
-            {% endif %}
+            {% endif -%}
                 <a href="{{ url_for('home.main') }}">Home</a>
             </li>
-            {% if (playbooks and playbooks > 0) or playbook %}
-            {% if active and active == 'reports' %}
+            {% if (playbooks and playbooks > 0) or playbook -%}
+            {% if active and active == 'reports' -%}
             <li class="active">
-            {% else %}
+            {% else -%}
             <li>
-            {% endif %}
+            {% endif -%}
                 <a href="{{ url_for('reports.report_list') }}">Playbook reports</a>
             </li>
-            {% endif %}
+            {% endif -%}
         </ul>
     </div>
 </nav>
+<!-- End navbar -->