Merge branch 'develop' of github.com:kzaher/RxSwift into develop

OSXPlayground.playground/Contents.swift

@@ -101,6 +101,27 @@ example("returnElements") {
 With the above, you will see that the `.Next` event was sent ten times, once for each element. Then `.Complete` was sent.
 */
 
+/*:
+### from
+We can also create an observable from any SequenceType, such as an array
+*/
+
+example("from") {
+    let fromArrayObservable = from([1, 2, 3, 4, 5])
+    
+    let fromArrayObservableSubscriber = fromArrayObservable
+        >- subscribe { event in
+            switch event {
+            case .Next(let box):
+                println("\(box.value)")
+            case .Completed:
+                println("completed")
+            case .Error(let error):
+                println("\(error)")
+        }
+    }
+}
+
 /*:
 Now these functions are all well and good, but the really useful ones are in the RxCocoa library.
 `rx_observe` exist on every NSObject and wraps KVO.

RxSwift/RxSwift/Observables/Observable+Creation.swift

@@ -56,6 +56,17 @@ public func returnElements<E>(values: E ...) -> Observable<E> {
     }
 }
 
+public func from<E, S where S: SequenceType, S.Generator.Element == E>(sequence: S) -> Observable<E> {
+    return AnonymousObservable { observer in
+        for element in sequence {
+            sendNext(observer, element)
+        }
+        
+        sendCompleted(observer)
+        return DefaultDisposable()
+    }
+}
+
 // fail
 
 public func failWith<E>(error: ErrorType) -> Observable<E> {