changes creualean stylesheet-name

Author: rhornig

_layouts/default.html

@@ -4,7 +4,7 @@
     <meta charset="utf-8">
     <title>INET Framework - {{ page.title }}</title>
     <meta name="viewport" content="width=device-width, initial-scale=1">
-    <link rel="stylesheet" href="stylesheets/bootstrap.min.css" media="screen">
+    <link rel="stylesheet" href="stylesheets/bootstrap-cerulean.min.css" media="screen">
     <link rel="stylesheet" href="stylesheets/inet.css">
     <!-- HTML5 shim and Respond.js IE8 support of HTML5 elements and media queries -->
     <!--[if lt IE 9]>