feat(package): update commitlint to version 5.0.1 (#55)

- @commitlint/cli
- @commitlint/config-angular

BREAKING CHANGE:

Angular's commit convention has removed the `chore` type. For details, see below links:

- https://github.com/marionebl/commitlint/releases/tag/v5.0.0
- https://github.com/angular/angular/blob/master/CONTRIBUTING.md

Also add `browserslist` settings to fix lint error.

package.json

@@ -30,8 +30,8 @@
     "node": ">=6"
   },
   "dependencies": {
-    "@commitlint/cli": "^4.3.0",
-    "@commitlint/config-angular": "^4.3.0",
+    "@commitlint/cli": "^5.0.1",
+    "@commitlint/config-angular": "^5.0.1",
     "eslint": "^4.11.0",
     "eslint-config-ybiquitous": "^3.0.1",
     "fs-extra": "^4.0.2",
@@ -85,5 +85,8 @@
       "lib",
       "test"
     ]
-  }
+  },
+  "browserslist": [
+    "> 5%"
+  ]
 }