2.0.0: Swift 5 x code 10 2 (#4)

* Stop strongly retaining KeyboardDogerDelegate avoiding the likelihood of retain cycles.
* Bumped podspec version
* Updated swift version used and replaced renamed UIKit types
* Updated podspec

1.0.4

Add deployment target

1.0.3

Bump podspec version

1.0.2

Update KeyboardDodger.podspec

1.0.1

Supports Carthage