include site-wide css files before page-specific css

Author: daattali

_includes/head.html

@@ -48,14 +48,14 @@
     {% endfor %}
   {% endif %}
 
-  {% if page.css %}
-    {% for css in page.css %}
+  {% if site.site-css %}
+    {% for css in site.site-css %}
       <link rel="stylesheet" href="{{ css | relative_url }}">
     {% endfor %}
   {% endif %}
-
-  {% if site.site-css %}
-    {% for css in site.site-css %}
+  
+  {% if page.css %}
+    {% for css in page.css %}
       <link rel="stylesheet" href="{{ css | relative_url }}">
     {% endfor %}
   {% endif %}