Reactive array spec: Fix confusion regarding which operation (does not)

update/s the observable count

Author: jmper1

ReactiveArrayTests/ReactiveArraySpec.swift

@@ -429,7 +429,7 @@ class ReactiveArraySpec: QuickSpec {
                     producer = producer.skip(1)
                 }
 
-                it("does not update the count") {
+                it("updates the count") {
                     waitUntil { done in
                         producer
                             .take(1)
@@ -452,7 +452,7 @@ class ReactiveArraySpec: QuickSpec {
                     producer = producer.skip(1)
                 }
 
-                it("updates the count") {
+                it("does not update the count") {
                     waitUntil { done in
                         array[1] = 656
                         expect(array.count).to(equal(countBeforeOperation))