Update husky to version 0.13.4

Author: depfu[bot]

package.json

@@ -34,7 +34,7 @@
     "babel-preset-env": "^1.4.0",
     "babel-preset-flow": "^6.23.0",
     "flow-bin": "^0.45.0",
-    "husky": "^0.13.3",
+    "husky": "^0.13.4",
     "jest": "19.x.x",
     "lint-staged": "^3.4.1",
     "prettier": "^1.3.1",

yarn.lock

@@ -1376,9 +1376,9 @@ http-signature@~1.1.0:
     jsprim "^1.2.2"
     sshpk "^1.7.0"
 
-husky@^0.13.3:
-  version "0.13.3"
-  resolved "https://registry.yarnpkg.com/husky/-/husky-0.13.3.tgz#bc2066080badc8b8fe3516e881f5bc68a57052ff"
+husky@^0.13.4:
+  version "0.13.4"
+  resolved "https://registry.yarnpkg.com/husky/-/husky-0.13.4.tgz#48785c5028de3452a51c48c12c4f94b2124a1407"
   dependencies:
     chalk "^1.1.3"
     find-parent-dir "^0.3.0"