Convert docdock theme from submodule to native files and fix Hugo compatibility

themes/docdock/layouts/_default/li.html

@@ -0,0 +1,22 @@
+<article class="post {{ .Section }}">
+    <header class="post-header">
+        <h2 class="post-title"><a href="{{ .RelPermalink }}">{{ .Title }}</a></h2>
+    </header>
+    <section class="post-excerpt">
+        <p>{{ .Summary }} <a class="read-more" href="{{.RelPermalink}}">&raquo;</a></p>
+    </section>
+    <footer class=" footline" >
+         
+        {{with .Params.LastModifierDisplayName}}
+            <i class='fa fa-user'></i> <a href="mailto:{{ $.Params.LastModifierEmail }}">{{ . }}</a> {{with $.Date}} <i class='fa fa-calendar'></i> {{ .Format "02/01/2006" }}{{end}}
+        {{end}}
+
+        
+        {{if .Params.tags }}  
+            {{ range $index, $tag := .Params.tags }}
+                <a class="label label-default" href="{{$.Site.BaseURL}}tags/{{ $tag | urlize }}/">{{ $tag }}</a>
+            {{ end }}
+        {{end}}
+
+    </footer>
+</article>