don't specify http or https for webfonts

templates/base.html

@@ -7,7 +7,7 @@
     <meta name="keywords" content="monitor cron jobs daemon background worker service cronjob monitoring crontab alert notify cronitor deadmanssnitch">
 
     {% load staticfiles %}
-    <link href='http://fonts.googleapis.com/css?family=Open+Sans:400,300,600' rel='stylesheet' type='text/css'>
+    <link href='//fonts.googleapis.com/css?family=Open+Sans:400,300,600' rel='stylesheet' type='text/css'>
     <link rel="stylesheet" href="{% static 'css/bootstrap.css' %}" type="text/css">
     <link rel="stylesheet" href="{% static 'css/style.css' %}" type="text/css">
     <link rel="stylesheet" href="{% static 'css/pricing.css' %}" type="text/css">