fix(npm): Updates xapi-agents.

James found an issue where the dist folder was missing for xapi-agents, should be fixed in 1.1.4.

Author: ryasmi

package-lock.json

@@ -45,7 +45,7 @@
     "redis": "^2.8.0",
     "source-map-support": "^0.4.11",
     "xapi-activities": "^1.1.3",
-    "xapi-agents": "^1.1.2",
+    "xapi-agents": "^1.1.4",
     "xapi-state": "^1.1.4",
     "xapi-statements": "^1.0.3"
   },