Merge #930

930: chore(deps): update dependency @reactivex/ix-es2015-cjs to v2.5.1 r=davemneo a=renovate[bot]

This PR contains the following updates:

| Package | Type | Update | Change | References |
|---|---|---|---|---|
| @​reactivex/ix-es2015-cjs | devDependencies | minor | `2.4.3` -> `2.5.1` | [source](https://togithub.com/ReactiveX/IxJS) |

---

### Release Notes

<details>
<summary>ReactiveX/IxJS</summary>

### [`v2.5.1`](https://togithub.com/ReactiveX/IxJS/compare/v2.5.0...v2.5.1)

[Compare Source](https://togithub.com/ReactiveX/IxJS/compare/v2.5.0...v2.5.1)

### [`v2.5.0`](https://togithub.com/ReactiveX/IxJS/compare/v2.4.3...v2.5.0)

[Compare Source](https://togithub.com/ReactiveX/IxJS/compare/v2.4.3...v2.5.0)

</details>

---

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packages/neo-one-client-full-core/package.json

@@ -18,7 +18,7 @@
   },
   "devDependencies": {
     "@neo-one/node-core": "^1.0.1",
-    "@reactivex/ix-es2015-cjs": "2.4.3",
+    "@reactivex/ix-es2015-cjs": "2.5.1",
     "@types/bn.js": "4.11.3",
     "bn.js": "4.11.8",
     "rxjs": "6.3.3"

yarn.lock

@@ -2201,13 +2201,12 @@
     react-lifecycles-compat "^3.0.4"
     warning "^3.0.0"
 
-"@reactivex/ix-es2015-cjs@2.4.3":
-  version "2.4.3"
-  resolved "https://registry.yarnpkg.com/@reactivex/ix-es2015-cjs/-/ix-es2015-cjs-2.4.3.tgz#9745fa341d9ee61e68fbea797cf72ab2cfba0013"
+"@reactivex/ix-es2015-cjs@2.5.1":
+  version "2.5.1"
+  resolved "https://registry.yarnpkg.com/@reactivex/ix-es2015-cjs/-/ix-es2015-cjs-2.5.1.tgz#4a34f0aeddbee8bc97debe63169693028b1bcc4f"
   dependencies:
     "@types/node" "^10.12.18"
     is-stream "1.1.0"
-    rxjs "5.5.11"
     tslib "^1.9.3"
 
 "@reactivex/ix-es2015-cjs@^2.3.5":
@@ -16506,12 +16505,6 @@ rxjs-tslint-rules@4.14.3:
     tslib "^1.8.0"
     tsutils "^3.0.0"
 
-rxjs@5.5.11:
-  version "5.5.11"
-  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-5.5.11.tgz#f733027ca43e3bec6b994473be4ab98ad43ced87"
-  dependencies:
-    symbol-observable "1.0.1"
-
 rxjs@6.3.3, rxjs@^6.1.0, rxjs@^6.3.3:
   version "6.3.3"
   resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-6.3.3.tgz#3c6a7fa420e844a81390fb1158a9ec614f4bad55"