Merge pull request #117 from lgeiger/bump-prebuild

Bump prebuild@6.0.0

Author: rgbkrk

package.json

@@ -17,7 +17,7 @@
     "jsdoc": "^3.4.2",
     "mocha": "^3.2.0",
     "nyc": "^10.0.0",
-    "prebuild": "^5.0.0",
+    "prebuild": "^6.0.0",
     "semver": "^5.3.0",
     "should": "^11.1.0"
   },