Moved unsaved changes service and modal

public/app/features/dashboard/components/UnsavedChangesModal/index.ts

+export { UnsavedChangesModalCtrl } from './UnsavedChangesModalCtrl';

public/app/features/dashboard/index.ts

@@ -8,10 +8,8 @@ import './share_snapshot_ctrl';
 import './dashboard_srv';
 import './validation_srv';
 import './time_srv';
-import './unsaved_changes_srv';
-import './unsaved_changes_modal';
-import './upload';
 import './ad_hoc_filters';
+import './upload';
 import './repeat_option/repeat_option';
 import './dashgrid/DashboardGridDirective';
 import './dashgrid/RowOptions';
@@ -19,6 +17,7 @@ import './panellinks/module';
 
 // Services
 import './services/DashboardViewStateSrv';
+import './services/UnsavedChangesSrv';
 
 // Components
 import './components/DashLinks';
@@ -30,6 +29,8 @@ import './components/VersionHistory';
 import './components/DashboardSettings';
 import './components/SubMenu';
 import './components/TimePicker';
+import './components/UnsavedChangesModal';
+
 import DashboardPermissions from './components/DashboardPermissions/DashboardPermissions';
 
 // angular wrappers

public/app/features/dashboard/specs/change_tracker.test.ts → public/app/features/dashboard/services/ChangeTracker.test.ts

-import { ChangeTracker } from 'app/features/dashboard/change_tracker';
+import { ChangeTracker } from './ChangeTracker';
 import { contextSrv } from 'app/core/services/context_srv';
 import { DashboardModel } from '../dashboard_model';
 import { PanelModel } from '../panel_model';

public/app/features/dashboard/change_tracker.ts → public/app/features/dashboard/services/ChangeTracker.ts

 import angular from 'angular';
 import _ from 'lodash';
-import { DashboardModel } from './dashboard_model';
+import { DashboardModel } from '../dashboard_model';
 
 export class ChangeTracker {
   current: any;

public/app/features/dashboard/unsaved_changes_srv.ts → public/app/features/dashboard/services/UnsavedChangesSrv.ts

 import angular from 'angular';
-import { ChangeTracker } from './change_tracker';
+import { ChangeTracker } from './ChangeTracker';
 
 /** @ngInject */
 export function unsavedChangesSrv(this: any, $rootScope, $q, $location, $timeout, contextSrv, dashboardSrv, $window) {