Child injectors in CommandExecutor are not destroyed

[fljot]

https://github.com/robotlegs/robotlegs-framework/blob/master/src/robotlegs/bender/extensions/commandCenter/impl/CommandExecutor.as#L48

Here you create child injector (which is nice, because you can define custom mappings in the "scope" of command execution), but it's not destroyed anywhere. Maybe it would be even better to create child injector in executeCommands() and call childInjector.tearDown() in the end of this method? Or some disposal method for CommandExecutor.