Merge branch 'master' of Gyom/arn-nav into master

nav.css

@@ -193,7 +193,7 @@
 }
 
 .bootstrap-scope #menu_ynh .dropdown-menu li li > a {
-    color:#262626;
+    color:#555;
 }
 .bootstrap-scope .navbar-default .navbar-nav li li > a:hover {
     background-color: #2f98cf;

nav.json

@@ -293,7 +293,7 @@
         },
         {
           "title": "Flux RSS",
-          "icon": "fa-rss",
+          "icon": "fa-feed",
           "link": "https://arn-fai.net/rss.xml"
         },
         {