Use HTTPS endpoint for external resources.

This pull request will change the endpoints where external resources are fetched from, to their SSL variant. This is needed since github pages uses HTTPS and HTTP endpoints would result in "mixed content" which is blocked by some browsers.

Author: nilstgmd

_includes/head.html

@@ -12,11 +12,11 @@
 
     <!-- Custom Fonts -->
     <link rel="stylesheet" href="{{ "/css/font-awesome/css/font-awesome.min.css" | prepend: site.baseurl }}">
-    <link href="http://fonts.googleapis.com/css?family=Montserrat:400,700" rel="stylesheet" type="text/css">
-    <link href='http://fonts.googleapis.com/css?family=Kaushan+Script' rel='stylesheet' type='text/css'>
-    <link href="http://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic" rel="stylesheet" type="text/css">
-    <link href='http://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic,700italic' rel='stylesheet' type='text/css'>
-    <link href='http://fonts.googleapis.com/css?family=Roboto+Slab:400,100,300,700' rel='stylesheet' type='text/css'>
+    <link href="https://fonts.googleapis.com/css?family=Montserrat:400,700" rel="stylesheet" type="text/css">
+    <link href='https://fonts.googleapis.com/css?family=Kaushan+Script' rel='stylesheet' type='text/css'>
+    <link href="https://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic" rel="stylesheet" type="text/css">
+    <link href='https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic,700italic' rel='stylesheet' type='text/css'>
+    <link href='https://fonts.googleapis.com/css?family=Roboto+Slab:400,100,300,700' rel='stylesheet' type='text/css'>
 
     <!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->
     <!-- WARNING: Respond.js doesn't work if you view the page via file:// -->