Apokrupto

@morganchen12 Sorry for not getting back to this sooner, but I'm afraid `decrementActivity` will only work if the custom login view controller inherits from `FUIAuthBaseViewController`, which isn't necessarily the case....

I may have misunderstood the intent of `FUIAuthBaseViewController` and how it can be extended, but the documentation stated that I could customise everything except for the actual sign-in buttons. My...

Thanks @morganchen12 Indeed, the workaround I have implemented in my project has been to swizzle `addActivityIndicator`