rubber 0.4.0

Rubber is an elastic bottom sheet widget with the customizable material spring animation.

## [0.4.0] - 12/05/2019

• BREAKING CHANGE : Removed RubberBottomSheetScope.of() InherithedWidget and moved to RubberBottomSheet.of()
• Improved stability and removed logging

## [0.3.2] - 12/05/2019

• Added method to animate to a certain point animateTo({double from, double to}) and fixed launchTo.

## [0.3.1] - 12/05/2019

• Added substituteScrollController to change the scrollController without setState().
• Fixed issue headerHeight from last release.
• Improved dismissable functionalities.
• Added dragFriction to change the friction when scrolling over bounds.
• Changed header behavior. If header is present it will be possible to drag up and down the bottomsheet only from the peak.
• Removed dismiss method and dismissed state as unnecessary. The dismissable property will use the lowerBound as stopping point.

## [0.2.9] - 04/05/2019

• Fixed header height without header

## [0.2.8] - 02/05/2019

• Optimized status updates
• Fixed heder overflow, now parameters header and headerHeight are needed
• Improved stability

## [0.2.7] - 15/03/2019

• Changed "value" parameter name to "initialValue" in RubberAnimationController
• Added dismiss() method

[0.2.6] - 12/01/2019

• Fixed height factor < 0 crash
• Fixed exception if not using a scroll controller
• Improved stability to the launchTo animation

[0.2.5] - 12/01/2019

• Added header to help manage the bottom sheet with scrolling elements
• Fixed gestures detector inside Scrollable

[0.2.4] - 08/01/2019

• IOS optimization

[0.2.3] - 08/01/2019

• Bug fix

[0.2.2] - 07/01/2019

• Added scroll feature

[0.2.1] - 26/12/2018

• Added some spring descriptions
• Added new example to show spring settings
• Fixed pixel size initial value

[0.2.0] - 18/12/2018

• Added dismissable parameter to the animation controller
• Now it is possible to use pixel measures instead of percentages.
• Added the menu example

[0.1.7] - 17/12/2018

• Fixed example and hiding

[0.1.6] - 17/12/2018

• Fixed animation value < 0 or > 1

[0.1.5] - 17/12/2018

• Changed hide/show control and optimized

[0.1.4] - 17/12/2018

• Changed description and readme

[0.1.3] - 16/12/2018

• Initial release