EAGLESIX-5450 Pin sift to the previously working version.

Conflicts:
	package.json

package.json

@@ -33,8 +33,8 @@
     "alteration"
   ],
   "dependencies": {
-    "sift": "*",
-    "async": "*"
+    "sift": "0.5.6",
+	"async": "*"
   },
   "devDependencies": {
     "mocha": "*",