Upgrade fingerprintjs2 to 1.8.1 (from 1.8.0)

Author: bdukes

package.json

@@ -27,7 +27,7 @@
     "eonasdan-bootstrap-datetimepicker": "4.17.47",
     "es6-shim": "0.35.3",
     "file-saver": "1.3.8",
-    "fingerprintjs2": "1.8.0",
+    "fingerprintjs2": "1.8.1",
     "flexslider": "2.7.0",
     "handlebars": "4.0.11",
     "html5-history-api": "4.2.10",