feat(palette): integrate lane symbol

lib/features/palette/PaletteProvider.js

@@ -58,6 +58,10 @@ PaletteProvider.prototype.getPaletteEntries = function(element) {
     create.start(event, elementFactory.createParticipantShape(collapsed));
   }
 
+  function createLane(event) {
+    create.start(event, elementFactory.createShape({ type: 'bpmn:Lane' }));
+  }
+
   assign(actions, {
     'lasso-tool': {
       group: 'tools',
@@ -110,6 +114,15 @@ PaletteProvider.prototype.getPaletteEntries = function(element) {
         dragstart: createParticipant,
         click: createParticipant
       }
+    },
+    'create.lane': {
+      group: 'collaboration',
+      className: 'icon-lane',
+      title: 'Create Lane',
+      action: {
+        dragstart: createLane,
+        click: createLane
+      }
     }
   });
 

test/spec/features/palette/PaletteProviderSpec.js

@@ -27,7 +27,7 @@ describe('features/palette', function() {
     var entries = domQuery.all('.entry', paletteElement);
 
     // then
-    expect(entries.length).to.equal(9);
+    expect(entries.length).to.equal(10);
   }));
 
 });