chore(dependencies): update rxjs to 5.5.x

* chore(package): bump rxjs to 5.5

* Update package.json

* Update package.json

Author: danielsogl

package.json

@@ -36,7 +36,7 @@
     "@angular/platform-browser-dynamic": "5.0.0",
     "@angular/tsc-wrapped": "5.0.0-beta.7",
     "ionicons": "~3.0.0",
-    "rxjs": "5.4.3",
+    "rxjs": "5.5.2",
     "zone.js": "0.8.18"
   },
   "devDependencies": {