add bug fix and contribution specific pages

Author: ace4971

_includes/postlist.html

@@ -4,8 +4,16 @@
 	}
 </style>
 
-{% if include.filter-by == "category" %}
-	{% assign group = site.categories %}
+{% assign group = site.categories %}
+
+
+{% if include.source and include.source != "" and include.source != nil %}
+
+	{% assign postlist = group[include.source] %}
+	{% include postshowcase.html posts=postlist %}
+
+{% else %}
+
 	{% for item in group %}
 		{% assign item_name = item | first %}
 

bugfixes.html

@@ -0,0 +1,7 @@
+---
+layout: page
+title: Bug Fixes
+permalink: /bugfixes/
+---
+
+	{% include postlist.html filter-by="category" source="Bug Fix" %}

contributions.html

@@ -0,0 +1,7 @@
+---
+layout: page
+title: Contributions
+permalink: /contributions/
+---
+
+	{% include postlist.html filter-by="category" source="Contribution" %}