2.1.0

• fix issues caused by conflicting identifiers (#85) @Banck
• change WaterfallLayout default parameters' values to align with other layouts
  • from init(columns: Int = 1, spacing: CGFloat = 10)
  • to init(columns: Int = 2, spacing: CGFloat = 0)
• include WobbleAnimator into the podspec as a subspec.
  • pod "CollectionKit/WobbleAnimator"
• BaseSimpleAnimator
  • rename BaseSimpleAnimator to SimpleAnimator to align with SimpleLayout
  • rename updateAnimationDuration to animationDuration
  • add var animationOptions: UIViewAnimationOptions
  • add var useSpringAnimation: Bool
  • add var springDamping: CGFloat
• FadeAnimator
  • add var alpha: CGFloat
• ScaleAnimator
  • change its superclass from BaseSimpleAnimator to FadeAnimator
  • add var scale: CGFloat

Example project:

• move examples into its own project. and switch from Carthage to Cocoapods.