feat(modeler): (re-)integrate selection moving via keyboard

Closes #376

lib/Modeler.js

@@ -21,6 +21,7 @@ import CopyPasteModule from 'diagram-js/lib/features/copy-paste';
 import DistributeElementsModule from './features/distribute-elements';
 import EditorActionsModule from './features/editor-actions';
 import KeyboardModule from './features/keyboard';
+import KeyboardMoveSelectionModule from 'diagram-js/lib/features/keyboard-move-selection';
 import LabelEditingModule from './features/label-editing';
 import ModelingModule from './features/modeling';
 import MoveModule from 'diagram-js/lib/features/move';
@@ -210,6 +211,7 @@ Modeler.prototype._modelingModules = [
   DistributeElementsModule,
   EditorActionsModule,
   KeyboardModule,
+  KeyboardMoveSelectionModule,
   LabelEditingModule,
   ModelingModule,
   MoveModule,

test/spec/ModelerSpec.js

@@ -186,6 +186,7 @@ describe('Modeler', function() {
         'zoom',
         'removeSelection',
         'moveCanvas',
+        'moveSelection',
         'selectElements',
         'spaceTool',
         'lassoTool',