Added swift-version

Added iPhone X support.

Updated podspec

Update 1.1.4

- Fixed content offset bug.
- Added `estimatedHeight` var that returns the estimated height of the dialog view even it if it hasn't been loaded yet.
- Added `rubberEnabled` var which is true by default. when enabled it will add a rubber effect when trying to swipe the dialog up.

Update 1.1.3

- Added support for interactable views inside the `container`.
- Added `contentOffset` to allow shifting the dialog.

Updated Access Modifiers

More improvments

Updated to version 1.1.0

Added backgroundAlpha

Updated Access Modifieres