modify some things with blog post handling

Blog.html

@@ -17,7 +17,7 @@ permalink: Blog/
         {% include post-info.html tags = post.tags date=post.date%}
 
         <div class="post-excerpt">
-            {{post.content | markdownify| truncate: char-count}}
+            {{post.content | markdownify | strip_html | truncate: char-count}}
 
             <a class="post-see-more" href="{{ post.url | prepend: site.baseurl }}">
                 <i>See&nbsp;More</i>

_includes/post-info.html

@@ -4,8 +4,9 @@
             <small>
                 Tags:
                 {% if include.tags.size > 0 %}
-                    {% for tag in include.tags limit: 6%}
-                        <i>{{ tag }}</i>
+                    {% assign tags = include.tags | sort_natural | uniq %}
+                    {% for tag in tags %}
+                        <i>{{ tag | downcase }}</i>
                     {% endfor %}
                 {% else %}
                     none
@@ -13,7 +14,7 @@
             </small>
         <td  class="post-date" style="text-align:right">
             <small>
-                <i>{{ include.date | date: "%b %-d, %Y" }}</i>
+                <i>{{ include.date | date: "%b&nbsp;%-d,&nbsp;%Y" }}</i>
             </small>
         </td>
     </tr>