XCActionBar won't load on Xcode 8

[pdcgomes]

Xcode 8 introduces a new extension system which enables developers to finally be able to build and distribute Xcode extensions. The drawback is that at the present time this breaks the system we've had in place until now, meaning XCActionBar (along with all other plug-ins) will stop working. Given how sparse the documentation is, it isn't clear whether most of XCActionBar's functionally can be ported over to the new system; I suspect it is not, at least not just yet.

In the meantime, while not pretty, there is a workaround which will allow Xcode 8 to still load all your plugins.

Please see alcatraz/Alcatraz#475 for more information.