fix(package): update @robotlegsjs/signals to version 0.2.0

Author: greenkeeper[bot]

package.json

@@ -66,7 +66,7 @@
   "homepage": "https://github.com/RobotlegsJS/RobotlegsJS-SignalCommandMap#readme",
   "dependencies": {
     "@robotlegsjs/core": "^0.1.3",
-    "@robotlegsjs/signals": "^0.1.1"
+    "@robotlegsjs/signals": "^0.2.0"
   },
   "devDependencies": {
     "@types/bluebird": "^3.5.23",