Hide footer tags link if no tags exist

Hide meta description if DESCRIPTION is undefined

Minor improvements

alchemy/templates/include/analytics.html

@@ -5,9 +5,10 @@
     i[r] = i[r] || function() {
       (i[r].q = i[r].q || []).push(arguments)
     }, i[r].l = 1 * new Date();
-    a = s.createElement(o), m = s.getElementsByTagName(o)[0];
+    a = s.createElement(o);
     a.async = 1;
     a.src = g;
+    m = s.getElementsByTagName(o)[0];
     m.parentNode.insertBefore(a, m)
   })(window, document, 'script', 'https://www.google-analytics.com/analytics.js', 'ga');
   ga('create', '{{ GOOGLE_ANALYTICS }}', 'auto');

alchemy/templates/include/comments.html

@@ -2,12 +2,13 @@
 <hr>
 <div id="disqus_thread"></div>
 <script>
-  var disqus_config = function () {
+  var disqus_config = function() {
     this.page.url = '{{ SITEURL }}/{{ output_file }}';
     this.page.identifier = '{{ article.slug }}';
   };
   (function() {
-    var d = document, s = d.createElement('script');
+    var d = document;
+    var s = d.createElement('script');
     s.src = '//{{ DISQUS_SITENAME }}.disqus.com/embed.js';
     s.setAttribute('data-timestamp', +new Date());
     (d.head || d.body).appendChild(s);

alchemy/templates/include/pagination.html

@@ -1,4 +1,4 @@
-{% if DEFAULT_PAGINATION %}
+{% if articles_paginator.num_pages > 1 %}
 <hr>
 <ul class="pagination">
   {% if articles_page.has_previous() %}