started to add a histogram on key.

client/bower.json

@@ -22,6 +22,8 @@
     "codemirror": "~3.19.0",
     "angular-ui-codemirror": "~0.1.1",
     "spin.js": "~2.0.1",
-    "angular-spinner": "~0.4.0"
+    "angular-spinner": "~0.4.0",
+    "highcharts-ng": "~0.0.6",
+    "highcharts": "~3.0.7"
   }
 }