Make it possible to pass RACSignalAsynchronousWaitTimeout

[reactivecocoa]

Make it possible to pass RACSignalAsynchronousWaitTimeout

[erichoracek]

I've found in the past that when I'm bumping up against the time limits of the asynchronous... family of methods in tests, the solution is typically to attempt to speed up the test rather than increase the duration of the wait.

With respect to adding a new method, I'd learn towards actively discouraging long-running test methods in ReactiveObjC unless there's a very good use case for allowing custom wait durations.

However, if you absolutely need a longer timeout, it should be relatively easy to roll your own asynchronous... wait method as a RACSignal extension.

[jcavar]

We are using it for performance testing with quite large data set, so we expect it to be longer then 10, especially on our Jenkins machines that are relatively slow.

But regardless of that I think allowing to pass dependency is generally good idea. Someone maybe needs shorter time interval. And we can still keep default value 10.

[erichoracek]

That use case seems like something that could be supported by ReactiveObjC if you'd want to take a stab at it. We'd likely want to keep the original asynchronous... methods but add another set that takes an extra timeout:(NSTimeInterval) for backwards compatibility.

[jcavar]

Yes, that makes sense. Cool, I will then work on this when I have some free time and will post PR.