chore(package): update grunt-jekyll to version 1.0.0

Author: greenkeeper[bot]

package.json

@@ -32,7 +32,7 @@
     "grunt-contrib-sass": "~1.0.0",
     "grunt-contrib-uglify": "~4.0.0",
     "grunt-contrib-watch": "~1.1.0",
-    "grunt-jekyll": "~0.4.1",
+    "grunt-jekyll": "~1.0.0",
     "grunt-contrib-connect": "~2.0.0",
     "grunt-modernizr": "~1.0.2",
     "grunt-svgmin": "~5.0.0"