easier configuration of translated instance descriptions on the home page

customize.dist/pages.js

@@ -132,6 +132,8 @@ define([
                 customURLs[k] = value[l] || value['default'];
             }
         });
+        var value = AppConfig.hostDescription;
+        Pages.hostDescription = (value && (value[l] || value.default)) ||  Msg.home_host;
     }());
 
     // used for the about menu

customize.dist/pages/index.js

@@ -122,7 +122,7 @@ define([
             h('div.row.cp-page-section',
                 h('div.col-sm-12', [
                     h('h2', Msg.home_host_title),
-                    h('p'), Msg.home_host
+                    h('p', Pages.hostDescription),
                 ])
             ),
             h('div.row.cp-page-section', [