Fix prettyDiskSize to use 1000 instead of 1024

src/views/system.js

@@ -175,7 +175,7 @@ angular.module('Application').controller('SystemController', ['$scope', '$locati
                 });
             });
 
-            $scope.disks = result.disks;
+            $scope.disks = result.disks; // [ { filesystem, type, size, used, available, capacity, mountpoint }]
 
             // lazy fetch graphite data
             $scope.disks.forEach(function (disk) {
@@ -221,7 +221,7 @@ angular.module('Application').controller('SystemController', ['$scope', '$locati
                             usageOther -= tmp;
                         });
 
-                        // add content container for other non tracked data
+                        // add content container for other non tracked data.
                         disk.contains.push({
                             label: 'Ubuntu',
                             id: 'other',