Not Working on swift 2.3

[grantkemp]

Unfortunately the project doesn't build on 2.3

in dg_center:

> if usePresentationLayerIfPossible,
>             let presentationLayer = layer.presentationLayer() as? CALayer {
>             // Position can be used as a center, because anchorPoint is (0.5, 0.5)
>             return presentationLayer.position
>         }
>         return center

returns the following error:
Downcast from 'CALayer?' to 'CALayer' only unwraps optionals; did you mean to use '!'?

I am not sure why that downcast is there as layer.presentationlayer() seems to return a CALayer. If its unneeded then removing the downcast allows the project to build

[gontovnik]

I will try to look into that this week.

[LunaCodeGirl]

@gontovnik I have a fix for this on my swift-2.3 branch. Its very simple, here is a diff of my branch on your 1.0.3 tag.

I'm unable to make a pull request because the 1.0.3 tag doesn't exist as the head of any branches. If you could make a swift-2.3 branch based on your 1.0.3 tag I'd be happy to make a pull request for you to merge in.