Update Rx dependency of example project

Author: devxoul

Example/Podfile.lock

@@ -9,12 +9,12 @@ PODS:
     - ReusableKit/Core
     - RxCocoa (>= 3.4)
     - RxSwift (>= 3.4)
-  - RxCocoa (4.0.0-beta.0):
-    - RxSwift (~> 4.0.0-beta.0)
-  - RxKeyboard (0.7.0):
-    - RxCocoa (~> 4.0.0-beta.0)
-    - RxSwift (~> 4.0.0-beta.0)
-  - RxSwift (4.0.0-beta.0)
+  - RxCocoa (4.1.2):
+    - RxSwift (~> 4.0)
+  - RxKeyboard (0.8.1):
+    - RxCocoa (>= 4.0.0)
+    - RxSwift (>= 4.0.0)
+  - RxSwift (4.1.2)
   - SnapKit (4.0.0)
   - SwiftyColor (1.0.0)
   - SwiftyImage (1.2.0)
@@ -40,9 +40,9 @@ SPEC CHECKSUMS:
   CGFloatLiteral: 2ab558b74124b584dd023a35b7e41795a61d8140
   ManualLayout: 68ac8cfa6b5f656f7a9fadec3730208b95986880
   ReusableKit: 4e4f45128985987555bde17abbf261c0a604f9f2
-  RxCocoa: 8d809675f4e89c5c4c5a6900bbd11fe632ad5d86
-  RxKeyboard: 4167b1f005745a4178c3ac4adfc8177482b87675
-  RxSwift: e0899fae37065c16db976cc5e3c957e4e388869c
+  RxCocoa: d88ba0f1f6abf040011a9eb4b539324fc426843a
+  RxKeyboard: ce24525d4a3dc983664e44540f240c8e7bb4d4b8
+  RxSwift: e49536837d9901277638493ea537394d4b55f570
   SnapKit: a42d492c16e80209130a3379f73596c3454b7694
   SwiftyColor: 7fa09db14051bc5d7f539e1c4576665975225992
   SwiftyImage: ebaa7c7b6163cd4ad102f3bb05a8fb276d35b4f3