fix(deps): rimraf@2.6.1

Author: zkat

package.json

@@ -50,7 +50,7 @@
     "mkdirp": "^0.5.1",
     "once": "^1.4.0",
     "promise-inflight": "^1.0.1",
-    "rimraf": "^2.5.4",
+    "rimraf": "^2.6.1",
     "slide": "^1.1.6",
     "split": "^1.0.0",
     "unique-filename": "^1.1.0"