Added hide-title YAML parameter

Allows to hide the title from a post.

Author: radikahl

_config.yml

@@ -85,6 +85,7 @@ defaults:
     values:
       layout: "post"
       comments: true  # add comments to all blog posts
+      hide-title: false
   -
     scope:
       path: "" # all files

index.html

@@ -8,8 +8,9 @@
   {% for post in paginator.posts %}
   <article class="post-preview">
     <a href="{{ post.url | prepend: site.baseurl }}">
+    {% if post.hide-title == false %}
 	  <h2 class="post-title">{{ post.title }}</h2>
-
+    {% endif %}
 	  {% if post.subtitle %}
 	  <h3 class="post-subtitle">
 	    {{ post.subtitle }}