Update htmlmanager dependencies to match others.

jupyter-widgets-htmlmanager/package.json

@@ -33,8 +33,8 @@
   },
   "homepage": "https://github.com/jupyter-widgets/ipywidgets#readme",
   "dependencies": {
-    "@jupyterlab/outputarea": "^0.5.0",
-    "@jupyterlab/rendermime": "^0.5.0",
+    "@jupyterlab/outputarea": "^0.7.0",
+    "@jupyterlab/rendermime": "^0.7.0",
     "@jupyter-widgets/base": "^0.3.0",
     "@jupyter-widgets/controls": "^0.3.0",
     "@phosphor/widgets": "^1.2.0",
@@ -45,18 +45,18 @@
   "devDependencies": {
     "@types/mocha": "^2.2.41",
     "@types/requirejs": "^2.1.28",
-    "chai": "^4.0.2",
+    "chai": "^4.0.0",
     "css-loader": "^0.28.4",
     "es6-promise": "^4.1.0",
     "file-loader": "^0.11.2",
     "json-loader": "^0.5.4",
-    "karma": "^1.7.0",
-    "karma-chrome-launcher": "^2.1.1",
+    "karma": "^1.6.0",
+    "karma-chrome-launcher": "^2.0.0",
     "karma-firefox-launcher": "^1.0.1",
     "karma-ie-launcher": "^1.0.0",
     "karma-mocha": "^1.3.0",
     "karma-mocha-reporter": "^2.2.3",
-    "mocha": "^3.4.2",
+    "mocha": "^3.3.0",
     "postcss": "^6.0.1",
     "postcss-cssnext": "^2.11.0",
     "postcss-import": "^10.0.0",