Merge pull request #17 from RobotlegsJS/greenkeeper/sinon-4.0.0

Update sinon to the latest version 🚀

Author: tiagoschenkel

package.json

@@ -57,10 +57,10 @@
   },
   "homepage": "https://github.com/RobotlegsJS/SignalsJS#readme",
   "devDependencies": {
-    "@types/bluebird": "^3.5.11",
+    "@types/bluebird": "^3.5.12",
     "@types/chai": "^4.0.4",
     "@types/mocha": "^2.2.43",
-    "@types/sinon": "^2.3.4",
+    "@types/sinon": "^2.3.5",
     "bluebird": "^3.5.0",
     "browserify-versionify": "^1.0.6",
     "chai": "^4.1.2",
@@ -92,15 +92,15 @@
     "reflect-metadata": "^0.1.10",
     "remap-istanbul": "^0.9.5",
     "rimraf": "^2.6.2",
-    "sinon": "^3.2.1",
+    "sinon": "^4.0.0",
     "sinon-chai": "^2.13.0",
     "source-map-support": "^0.4.18",
     "ts-loader": "^2.3.7",
     "ts-node": "^3.3.0",
     "tslint": "^5.7.0",
     "tslint-config-prettier": "^1.5.0",
     "typescript": "^2.5.2",
-    "webpack": "^3.5.6",
+    "webpack": "^3.6.0",
     "webpack-dev-server": "^2.8.2"
   }
 }