message: Pin rxjs to 6.2.2
  (Due to conflicts of rxjs 6.3.0 and flex-layout)
diff: "@angular/compiler": "^6.0.0",
  "@angular/compiler-cli": "^6.0.0",
  "@angular/core": "^6.0.0",
  - "@angular/flex-layout": "^6.0.0-beta.17",
  + "@angular/flex-layout": "^6.0.0-beta",
  "@angular/forms": "^6.0.0",
  "@angular/http": "^6.0.0",
  "@angular/material": "^6.0.1",
  "ng2-file-upload": "^1.3.0",
  "ngx-clipboard": "^11.1.1",
  "ngx-cookie": "^4.0.2",
  - "rxjs": "^6.0.0",
  + "rxjs": "6.2.2",
  "socket.io-client": "^2.1.1",
  "zone.js": "^0.8.26"
  },
  