Fix responsive layout on frontpage

Author: philipashlock

_layouts/hero.html

@@ -1,7 +1,7 @@
 {% include header.html %}            
 
 <div class="hero-unit home">
-  <div class="container-fluid">
+  <div class="container">
     <div class="row-fluid">
       <div class="span12">
         <h1>{{ site.title }}</h1>
@@ -11,7 +11,7 @@ <h2>{{ site.desc }}</h2>
   </div>
 </div>
 
-<div class="container-fluid">
+<div class="container">
   <div class="row-fluid">
     <div class="span12">
       {{ content }}