Tidied up some code using optional map

[BenMaer]

Simply shortens/tidies up a few places of code, each of which were 3 lines, but could be written with just one using Optional's map function.

This feels like too small of change to mention in the changelog. If you disagree, let me know and I can make a mention.

I was also thinking of further condensing this code to the existing extension on Disposables in AnonymousDisposable.swift:

extension Disposables {
.....
    /// Constructs a new disposable with the given action used for disposal. Provides an optional `dispose` param for convenience
    ///
    /// - parameter dispose: Optional disposal action which would be run upon calling `dispose`.
    public static func create(with dispose: (() -> Void)?) -> Disposable {
        return dispose.map({ create(with: $0) }) ?? create()
    }

}

That way, the three places I cleaned up wouldn't each be repeating the same logic. Let me know if that's something you'd want.

[freak4pc]

Nice fix! I added a clean-up suggestion.

[freak4pc]

ditto

[BenMaer]

Updated

[freak4pc]

ditto :)

[BenMaer]

Updated

[BenMaer]

Hey @freak4pc , I made the updates you suggested. Clever call with that!

Let me know if there's anything else I can do.