Bug related to changing to same view controller

[muvaf]

Hi,

Thanks for the work! But, I noticed a bug. To replicate:

1. Click menu button
2. Select the same view controller option with the one you have now
3. Click again to menu button and it doesn't work.
4. Click again now it works but view is messed up.

Problem is with sender.tag use. I fixed it by checking iif (view.subviews.last?.restorationIdentifier == "SlideMenuView") insted of checking for sender's tag. That seemed cleaner and more generic to me and also fixed the problem.

Also I made slidemenuvc a property of BaseViewController so that it doesn't initialize every time.

[Raafas]

@bymafmaf send a pull request