Make project build pass with swift 4.0

- pod update
- Force compile rxcocoa and rxswift with swift 3.2

Pods/RxCocoa/README.md

@@ -3,12 +3,6 @@
 
 [![Travis CI](https://travis-ci.org/ReactiveX/RxSwift.svg?branch=master)](https://travis-ci.org/ReactiveX/RxSwift) ![platforms](https://img.shields.io/badge/platforms-iOS%20%7C%20macOS%20%7C%20tvOS%20%7C%20watchOS%20%7C%20Linux-333333.svg) ![pod](https://img.shields.io/cocoapods/v/RxSwift.svg) [![Carthage compatible](https://img.shields.io/badge/Carthage-compatible-4BC51D.svg?style=flat)](https://github.com/Carthage/Carthage) [![Swift Package Manager compatible](https://img.shields.io/badge/Swift%20Package%20Manager-compatible-brightgreen.svg)](https://github.com/apple/swift-package-manager)
 
-## About Rx
-
-**:warning: This readme describes RxSwift 3.0 version that requires Swift 3.0.**
-
-**:warning: If you are looking for Swift 2.3 compatible version, please take a look at RxSwift ~> 2.0 versions and [swift-2.3](https://github.com/ReactiveX/RxSwift/tree/rxswift-2.0) branch.**
-
 Rx is a [generic abstraction of computation](https://youtu.be/looJcaeboBY) expressed through `Observable<Element>` interface.
 
 This is a Swift version of [Rx](https://github.com/Reactive-Extensions/Rx.NET).
@@ -27,7 +21,7 @@ KVO observing, async operations and streams are all unified under [abstraction o
 
 * [why use rx?](Documentation/Why.md)
 * [the basics, getting started with RxSwift](Documentation/GettingStarted.md)
-* [units](Documentation/Units.md) - what is `Driver`, `ControlProperty`, and `Variable` ... and why do they exist?
+* [traits](Documentation/Traits.md) - what are `Single`, `Completable`, `Maybe`, `Driver`, `ControlProperty`, and `Variable` ... and why do they exist?
 * [testing](Documentation/UnitTests.md)
 * [tips and common errors](Documentation/Tips.md)
 * [debugging](Documentation/GettingStarted.md#debugging)
@@ -81,11 +75,10 @@ KVO observing, async operations and streams are all unified under [abstraction o
 let searchResults = searchBar.rx.text.orEmpty
     .throttle(0.3, scheduler: MainScheduler.instance)
     .distinctUntilChanged()
-    .flatMapLatest { query -> Observable<[Repository]> in
+    .flatMapLatest { query -> Observable&lt;[Repository]&gt; in
         if query.isEmpty {
             return .just([])
         }
-
         return searchGitHub(query)
             .catchErrorJustReturn([])
     }
@@ -97,7 +90,7 @@ let searchResults = searchBar.rx.text.orEmpty
   <tr>
     <td width="30%"><div class="highlight highlight-source-swift"><pre>
 searchResults
-    .bindTo(tableView.rx.items(cellIdentifier: "Cell")) {
+    .bind(to: tableView.rx.items(cellIdentifier: "Cell")) {
         (index, repository: Repository, cell) in
         cell.textLabel?.text = repository.name
         cell.detailTextLabel?.text = repository.url
@@ -111,6 +104,7 @@ searchResults
 
 * Xcode 8.0
 * Swift 3.0
+* Swift 2.3 ([use `rxswift-2.0` branch](https://github.com/ReactiveX/RxSwift/tree/rxswift-2.0) instead)
 
 ## Installation
 
@@ -184,6 +178,12 @@ let package = Package(
 $ swift build
 ```
 
+To build or test a module with RxTest dependency, set `TEST=1`. ([RxSwift >= 3.4.2](https://github.com/ReactiveX/RxSwift/releases/tag/3.4.2))
+
+```bash
+$ TEST=1 swift test
+```
+
 ### Manually using git submodules
 
 * Add RxSwift as a submodule
@@ -200,6 +200,8 @@ $ git submodule add git@github.com:ReactiveX/RxSwift.git
 
 * [http://reactivex.io/](http://reactivex.io/)
 * [Reactive Extensions GitHub (GitHub)](https://github.com/Reactive-Extensions)
+* [RxSwift RayWenderlich.com Book](https://store.raywenderlich.com/products/rxswift)
+* [Boxue.io RxSwift Online Course](https://boxueio.com/series/rxswift-101) (Chinese 🇨🇳)
 * [Erik Meijer (Wikipedia)](http://en.wikipedia.org/wiki/Erik_Meijer_%28computer_scientist%29)
 * [Expert to Expert: Brian Beckman and Erik Meijer - Inside the .NET Reactive Framework (Rx) (video)](https://youtu.be/looJcaeboBY)
 * [Reactive Programming Overview (Jafar Husain from Netflix)](https://www.youtube.com/watch?v=dwP1TNXE6fc)