Optional ShouldQueue Behavior v2

[volkv]

There is no need to create separate Listener without ShouldQueue interface. I'm sure there is a way how we could set queue connection to sync on the fly.

That ShouldQueue listeners is a bit tricky, they are not going to IoC container so its not possible to rebind them.
There is a public property $connection but you cant set it on __construct cuz it goes throw
$listener = (new ReflectionClass($class))->newInstanceWithoutConstructor();
The previous approach was a bit straightforward and non-OOP way but it did its job without 'hacks'
This one is another - a bit dirtier, but minimal.
So please choose one or tell your ideas

[antonkomarev]

Closing in favor of #145 (comment)