deps(tslint): set tslint to ~4.2 (#3938)

Author: cnishina

package.json

@@ -51,7 +51,7 @@
     "rimraf": "~2.5.3",
     "run-sequence": "^1.1.5",
     "semver": "^5.3.0",
-    "tslint": "^4.1.0",
+    "tslint": "~4.2.0",
     "tslint-eslint-rules": "^3.2.0",
     "typescript": "^2.0.0",
     "vrsource-tslint-rules": "^4.0.0"