Add support for 'order' property for apps.

- Reorder core plugins.

src/core_plugins/kibana/index.js

@@ -55,39 +55,35 @@ module.exports = function (kibana) {
           url: `${kbnBaseUrl}#/discover`,
           description: 'interactively explore your data',
           icon: 'plugins/kibana/assets/discover.svg',
-        },
-        {
+        }, {
           id: 'kibana:visualize',
           title: 'Visualize',
           order: -1002,
           url: `${kbnBaseUrl}#/visualize`,
           description: 'design data visualizations',
           icon: 'plugins/kibana/assets/visualize.svg',
-        },
-        {
+        }, {
           id: 'kibana:dashboard',
           title: 'Dashboard',
           order: -1001,
           url: `${kbnBaseUrl}#/dashboard`,
           description: 'compose visualizations for much win',
           icon: 'plugins/kibana/assets/dashboard.svg',
-        },
-        {
+        }, {
+          title: 'Dev Tools',
+          order: 9001,
+          url: '/app/kibana#/dev_tools',
+          description: 'development tools',
+          icon: 'plugins/kibana/assets/wrench.svg'
+        }, {
           id: 'kibana:management',
           title: 'Management',
-          order: 1000,
+          order: 9003,
           url: `${kbnBaseUrl}#/management`,
           description: 'define index patterns, change config, and more',
           icon: 'plugins/kibana/assets/settings.svg',
           linkToLastSubUrl: false
         },
-        {
-          title: 'Dev Tools',
-          order: 1010,
-          url: '/app/kibana#/dev_tools',
-          description: 'development tools',
-          icon: 'plugins/kibana/assets/wrench.svg'
-        }
       ],
       injectDefaultVars(server, options) {
         return {

src/core_plugins/timelion/index.js

@@ -18,6 +18,7 @@ module.exports = function (kibana) {
     uiExports: {
       app: {
         title: 'Timelion',
+        order: -1000,
         description: 'Time series expressions for everything',
         icon: 'plugins/timelion/icon.svg',
         main: mainFile,

src/ui/ui_app.js

@@ -13,6 +13,7 @@ class UiApp {
 
     this.main = this.spec.main;
     this.title = this.spec.title;
+    this.order = this.spec.order || 0;
     this.description = this.spec.description;
     this.icon = this.spec.icon;
     this.hidden = !!this.spec.hidden;
@@ -24,6 +25,7 @@ class UiApp {
       this.navLink = this.uiExports.navLinks.new({
         id: this.id,
         title: this.title,
+        order: this.order,
         description: this.description,
         icon: this.icon,
         url: this.spec.url || `/app/${this.id}`