fix(internet-explorer): fix bugs due to internet explorer

lib/draw/BpmnRenderer.js

@@ -1373,7 +1373,13 @@ function BpmnRenderer(eventBus, styles, pathMap, priority) {
 
       var textElement = renderExternalLabel(parentGfx, element);
 
-      var textBBox = textElement.getBBox();
+      var textBBox;
+
+      try {
+        textBBox = textElement.getBBox();
+      } catch (e) {
+        textBBox = { width: 0, height: 0, x: 0 };
+      }
 
       // update element.x so that the layouted text is still
       // center alligned (newX = oldMidX - newWidth / 2)

package.json

@@ -54,14 +54,14 @@
     "karma-firefox-launcher": "^0.1.3",
     "karma-ie-launcher": "^0.2.0",
     "karma-mocha": "~0.1.0",
-    "karma-phantomjs-launcher": "^0.2.0",
+    "karma-phantomjs-launcher": "^1.0.2",
     "karma-safari-launcher": "^0.1.1",
     "karma-sinon-chai": "~0.3.0",
     "karma-spec-reporter": "0.0.26",
     "load-grunt-tasks": "^0.3.0",
     "mocha": "^2.2.5",
     "mocha-test-container-support": "0.2.0",
-    "phantomjs": "^2.1.7",
+    "phantomjs-prebuilt": "^2.1.12",
     "sinon": "~1.14.1",
     "sinon-chai": "~2.7.0",
     "source-map-concat": "^1.0.0",
@@ -80,6 +80,6 @@
     "lodash": "^3.0.1",
     "min-dom": "^0.2.0",
     "object-refs": "^0.1.1",
-    "tiny-svg": "0.0.1"
+    "tiny-svg": "git://github.com/bpmn-io/tiny-svg.git#master"
   }
 }

test/spec/features/label-editing/LabelEditingProviderSpec.js

@@ -50,6 +50,9 @@ describe('features - label-editing', function() {
 
       // then
       expect(directEditing.isActive()).to.be.true;
+
+      // clean up
+      directEditing._textbox.destroy();
     }));