Rename style.css to elegant.css

Fix #40

templates/base.html

@@ -23,7 +23,7 @@
         {% block head_links %}
         <link href="http://cdn-images.mailchimp.com/embedcode/slim-081711.css" rel="stylesheet" type="text/css">
         <link href="//netdna.bootstrapcdn.com/twitter-bootstrap/2.3.1/css/bootstrap-combined.min.css" rel="stylesheet">
-        <link rel="stylesheet" type="text/css" href="{{ SITEURL }}/theme/css/style.css" media="screen">
+        <link rel="stylesheet" type="text/css" href="{{ SITEURL }}/theme/css/elegant.css" media="screen">
         <link rel="stylesheet" type="text/css" href="{{ SITEURL }}/theme/css/solarizedlight.css" media="screen">
         {% endblock head_links %}
         <link rel="shortcut icon" href="{{ SITEURL }}/theme/images/favicon.ico" type="image/x-icon" />