Use RxJS 5.4.2 to fix generics checking in TS 2.4.1

package-lock.json

@@ -4624,9 +4624,9 @@
       "dev": true
     },
     "rxjs": {
-      "version": "5.1.1",
-      "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-5.1.1.tgz",
-      "integrity": "sha1-/EiSKWW8bF77zA/kbpCjr2QTens=",
+      "version": "5.4.2",
+      "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-5.4.2.tgz",
+      "integrity": "sha1-KjI2/L8D31e64G/Wly/ZnlwI/Pc=",
       "dev": true
     },
     "safe-buffer": {

package.json

@@ -39,7 +39,7 @@
     "q": "1.5.0",
     "queue": "4.2.1",
     "rimraf": "2.6.1",
-    "rxjs": "5.4.0",
+    "rxjs": "5.4.2",
     "semver": "5.3.0",
     "tslint": "3.15.1",
     "tslint-ionic-rules": "0.0.8",