Improve category handling. Remove top-bar navigation for now (may bring it back later, in a more customized fashion)

_includes/category_list.html

@@ -1,5 +1,3 @@
-<h1 class="page-heading">{{ include.category | capitalize }}</h1>
-
 <ul class="post-list">
   {% for post in site.categories[include.category] limit:include.limit %}
     <li>

_includes/header.html

@@ -13,13 +13,6 @@
         </svg>
       </a>
 
-      <div class="trigger">
-        {% for my_page in site.pages %}
-          {% if my_page.title %}
-          <a class="page-link" href="{{ my_page.url | prepend: site.baseurl }}">{{ my_page.title }}</a>
-          {% endif %}
-        {% endfor %}
-      </div>
     </nav>
 
   </div>