using relative paths when importing fonts from google

css/AdminLTE.css

@@ -1,6 +1,6 @@
-@import url(http://fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,600,300italic,400italic,600italic);
+@import url(//fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,600,300italic,400italic,600italic);
 
-@import url(http://fonts.googleapis.com/css?family=Kaushan+Script);
+@import url(//fonts.googleapis.com/css?family=Kaushan+Script);
 /*! 
  *   AdminLTE v1.2
  *   Author: AlmsaeedStudio.com

less/AdminLTE.less

@@ -6,8 +6,8 @@
 !*/
 
 //google fonts
-@import url(http://fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,600,300italic,400italic,600italic);
-@import url(http://fonts.googleapis.com/css?family=Kaushan+Script);
+@import url(//fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,600,300italic,400italic,600italic);
+@import url(//fonts.googleapis.com/css?family=Kaushan+Script);
 
 //MISC
 //----
@@ -46,4 +46,4 @@
 //--------
 @import "iCheck.less";
 @import "pace.less";
-@import "bootstrap-social.less";
+@import "bootstrap-social.less";