bump dev deps

Author: krisselden

package.json

@@ -15,7 +15,7 @@
     "broccoli-concat": "^3.2.2",
     "broccoli-debug": "^0.6.4",
     "broccoli-funnel": "^2.0.1",
-    "broccoli-merge-trees": "^2.0.0",
+    "broccoli-merge-trees": "^3.0.0",
     "broccoli-persistent-filter": "^1.4.3",
     "broccoli-rollup": "^2.0.0",
     "broccoli-tee": "^1.0.2",

packages/@simple-dom/serializer/package.json

@@ -27,7 +27,7 @@
   "devDependencies": {
     "@simple-dom/dom-test-helper": "^1.4.0-alpha.82914663",
     "@simple-dom/void-map": "^1.4.0-alpha.82914663",
-    "ember-cli": "^2.18.2",
+    "ember-cli": "^3.0.0",
     "nyc": "^11.3.0",
     "qunit": "^2.4.1"
   },