UIViewController extension to present view / view controller as bottom-half modal

pod 'SemiModalViewController'

let options = [
    SemiModalOption.pushParentBack: true
]

let controller = UIViewController()

controller.view.height = 200
controller.view.backgroundColor = UIColor.redColor()

presentSemiViewController(controller, options: options, completion: {
    print("Completed!")
}, dismissBlock: {
    print("Dismissed!")
})

let view = UIView(frame: UIScreen.mainScreen().bounds)
view.height = 300
view.backgroundColor = UIColor.redColor()

presentSemiView(view, options: options) {
    print("Completed!")
}

dismissSemiModalView()

SemiModalOption.traverseParentHierarchy : true,
SemiModalOption.pushParentBack          : false,
SemiModalOption.animationDuration       : 0.5,
SemiModalOption.parentAlpha             : 0.5,
SemiModalOption.parentScale             : 0.8,
SemiModalOption.shadowOpacity           : 0.5,
SemiModalOption.transitionStyle         : .slideUp,
SemiModalOption.disableCancel           : true