Merge pull request #51 from vlourme/emoji

sidebar: hide emoji placeholder when no emoji is specified

layouts/partials/sidebar/left.html

@@ -18,7 +18,9 @@
                     {{ errorf "Failed loading avatar from %q" . }}
                 {{ end }}
 
-                <span class="emoji">{{ $.Site.Params.sidebar.emoji }}</span>
+                {{ with $.Site.Params.sidebar.emoji }}
+                    <span class="emoji">{{ . }}</span>
+                {{ end }}
             </figure>
         {{ end }}
         <h1 class="site-name"><a href="{{ .Site.BaseURL }}">{{ .Site.Title }}</a></h1>
@@ -40,4 +42,4 @@
         </li>
         {{ end }}
     </ol>
-</aside>
+</aside>