Upgrade Flo to 0.7.4

Author: BoykoAlex

ui/package.json

@@ -46,7 +46,7 @@
     "web-animations-js": "2.3.1",
     "stompjs": "2.3.3",
     "jshint": "2.9.5",
-    "spring-flo": "git://github.com/spring-projects/spring-flo#622c8279ad6938baf42d44e070097664b8f0e880",
+    "spring-flo": "0.7.4",
     "ng-busy": "1.4.4"
   },
   "devDependencies": {