Add avatar configuration and new single layout for Nightfall theme

layouts/_default/single.html

@@ -0,0 +1,42 @@
+{{ define "title"}}
+{{ .Title }} | {{ .Site.Params.author.name }}
+{{ end }}
+
+{{ define "main" }}
+<div class="postWrapper">
+    <h1>{{ .Title }}</h1>
+    {{ if .Description}}
+    	<p>{{.Description}}</p>
+    {{ end }}
+    {{ if .Params.showMetadata | default true }}
+    <section class="postMetadata">
+        <dl>
+            {{ with .GetTerms "tags" }}
+                {{ partial "taxonomy/tags.html" . }}
+            {{ end }}
+            {{ with .GetTerms "authors" }}
+                {{ partial "taxonomy/authors.html" . }}
+            {{ end }}
+            {{ with .GetTerms "categories" }}
+                {{ partial "taxonomy/categories.html" . }}
+            {{ end }}
+            {{ if .Site.Params.published | default true }}
+                <dt>{{ i18n "published" }}</dt>
+                {{ $formattedDate := .Date.Format "2006-01-02" }}
+                <dd><time datetime="{{ $formattedDate }}">{{ .Date | time.Format ":date_long" }}</time></dd>
+            {{ end }}
+            {{ if .Site.Params.readingTime | default true }}
+                <dt>{{ i18n "reading_time" }}</dt>
+                <dd>{{ i18n "reading_time_desc" .ReadingTime }}</dd>
+            {{ end }}
+        </dl>
+    </section>
+    {{ end }}
+    <div>
+        {{ .Content }}
+    </div>
+    <div>
+        {{ template "_internal/disqus.html" . }}
+    </div>
+</div>
+{{ end }}