cosmo: changed web font to use https

cosmo/bootstrap.css

-@import url('http://fonts.googleapis.com/css?family=Open+Sans:400italic,700italic,400,700');
+@import url('https://fonts.googleapis.com/css?family=Open+Sans:400italic,700italic,400,700');
 /*!
  * Bootstrap v2.2.1
  *

cosmo/bootstrap.min.css

-@import url('http://fonts.googleapis.com/css?family=Open+Sans:400italic,700italic,400,700');
+@import url('https://fonts.googleapis.com/css?family=Open+Sans:400italic,700italic,400,700');
 article,aside,details,figcaption,figure,footer,header,hgroup,nav,section{display:block;}
 audio,canvas,video{display:inline-block;*display:inline;*zoom:1;}
 audio:not([controls]){display:none;}

cosmo/bootswatch.less

@@ -6,7 +6,7 @@
 // TYPOGRAPHY
 // -----------------------------------------------------
 
-@import url('http://fonts.googleapis.com/css?family=Open+Sans:400italic,700italic,400,700');
+@import url('https://fonts.googleapis.com/css?family=Open+Sans:400italic,700italic,400,700');
 
 body {
 	font-weight: 300;