Updates project to XCode 7.1.

 - updates Quick to 0.8.0
 - updates Nimble to 3.0.0.
 - updates ReactiveCocoa to 4.0.0-alpha.2.

Author: Guido Marucci Blas

Cartfile

@@ -1 +1 @@
-github "ReactiveCocoa/ReactiveCocoa" "8ebff4f192ad11dfc62c55e8151c235d005f390b"
+github "ReactiveCocoa/ReactiveCocoa" "v4.0.0-alpha.2"

Cartfile.private

@@ -1,2 +1,2 @@
-github "Quick/Nimble" "v2.0.0-rc.3"
-github "Quick/Quick" ~> 0.6.0
+github "Quick/Nimble" ~> 3.0.0
+github "Quick/Quick" ~> 0.8.0

Cartfile.resolved

@@ -1,4 +1,4 @@
-github "Quick/Nimble" "v2.0.0-rc.3"
-github "Quick/Quick" "v0.6.0"
-github "antitypical/Result" "76f9a972ed61ff872b731460bc610c8acbfae58c"
-github "ReactiveCocoa/ReactiveCocoa" "8ebff4f192ad11dfc62c55e8151c235d005f390b"
+github "Quick/Nimble" "v3.0.0"
+github "Quick/Quick" "v0.8.0"
+github "antitypical/Result" "0.6.0-beta.3"
+github "ReactiveCocoa/ReactiveCocoa" "v4.0.0-alpha.2"

ReactiveArray/ReactiveArray.swift

@@ -39,7 +39,7 @@ public final class ReactiveArray<T>: CollectionType, MutableCollectionType, Cust
     }
 
     private let _mutableCount: MutableProperty<Int>
-    public let observableCount:PropertyOf<Int>
+    public let observableCount:AnyProperty<Int>
 
     public var isEmpty: Bool {
         return _elements.isEmpty
@@ -78,7 +78,7 @@ public final class ReactiveArray<T>: CollectionType, MutableCollectionType, Cust
     public init(elements:[T]) {
         _elements = elements
         _mutableCount = MutableProperty(elements.count)
-        observableCount = PropertyOf(_mutableCount)
+        observableCount = AnyProperty(_mutableCount)
 
         _signal.observe { [unowned self](event) in
             if case .Next(let operation) = event {
@@ -109,22 +109,22 @@ public final class ReactiveArray<T>: CollectionType, MutableCollectionType, Cust
 
     public func append(element: T) {
         let operation: Operation<T> = .Append(value: element)
-        _sink(Event.Next(operation))
+        _sink.sendNext(operation)
     }
 
     public func insert(newElement: T, atIndex index : Int) {
         let operation: Operation<T> = .Insert(value: newElement, atIndex: index)
-        _sink(Event.Next(operation))
+        _sink.sendNext(operation)
     }
 
     public func update(element: T, atIndex index: Int) {
         let operation: Operation<T> = .Update(value: element, atIndex: index)
-        _sink(Event.Next(operation))
+        _sink.sendNext(operation)
     }
 
     public func removeAtIndex(index:Int) {
         let operation: Operation<T> = .RemoveElement(atIndex: index)
-        _sink(Event.Next(operation))
+        _sink.sendNext(operation)
     }
 
     public func mirror<U>(transformer: T -> U) -> ReactiveArray<U> {