feat(ci): add commitizen for more consistent commit messages

package.json

@@ -26,14 +26,20 @@
     "lodash": "^4.17.4",
     "rethinkdb": "^2.3.3",
     "runtime-type-checks": "0.0.4",
-    "smartq": "^1.1.6",
-    "typings-global": "^1.0.28"
+    "smartq": "^1.1.6"
   },
   "devDependencies": {
+    "@types/node": "^8.5.7",
     "@types/shelljs": "^0.7.4",
+    "cz-conventional-changelog": "^2.1.0",
     "qenv": "^1.1.7",
     "shelljs": "^0.7.8",
     "smartstring": "^2.0.24",
     "tapbundle": "^1.1.1"
+  },
+  "config": {
+    "commitizen": {
+      "path": "./node_modules/cz-conventional-changelog"
+    }
   }
 }