0.2.0

• Important: Duration is no more pre-determined by the library but uses the default duration defined by Android in ValueAnimator. Quick animations use 60% of that duration value and slow animations use 300%. (#20)
• Adds "shake" animations. (#13)
  • Adds ShakeAnimations class with shake(), shakeQuickly() and shakeSlowly() methods.
• Adds "show as toast" animations. (#15)
  • Adds ToastAnimations class with showAsToast(), showAsToastQuickly() and showAsToastSlowly() methods.
• Adds "spin" animations. (#14)
  • Adds SpinAnimations class with spinLeft(), spinLeftQuickly(), spinLeftSlowly() methods for spinning to the left.
  • Adds SpinAnimations class with spinRight(), spinRightQuickly(), spinRightSlowly() methods for spinning to the right.