Chore: upgrade eslint and eslint-config-mysticatea

Author: mysticatea

package.json

@@ -18,8 +18,8 @@
   "devDependencies": {
     "chokidar-cli": "^1.2.0",
     "codecov": "^1.0.1",
-    "eslint": "^3.7.1",
-    "eslint-config-mysticatea": "^6.0.0",
+    "eslint": "^3.8.1",
+    "eslint-config-mysticatea": "^7.0.0",
     "mocha": "^3.1.0",
     "npm-run-all": "^3.1.0",
     "nyc": "^8.3.1",