chore(package): update remap-istanbul to version 0.13.0

Closes #276

Author: greenkeeper[bot]

package.json

@@ -54,7 +54,7 @@
     "octokat-fixtures": "git://github.com/philschatz/octokat-fixtures",
     "parallelshell": "^3.0.0",
     "phantomjs-prebuilt": "^2.1.14",
-    "remap-istanbul": "^0.11.1",
+    "remap-istanbul": "^0.13.0",
     "snazzy": "^7.1.0",
     "standard": "^9.0.0",
     "webpack": "^3.0.0",