v4.1.0-alpha.9

Features

• UI: Accessible success/fail colors (#4843)
• React-native: add option to set keyboarVerticalOffset (#4862)
• Addon-CSSResources: new adddon to dynamically add/remove css (#4622)

Bug Fixes

• Core: Add try, catch for history API for IE11 (#4870)
• Core: Don't copy index.html on build-storybook (#4856)
• React-native: properly set initial story out of Async Storage. (#4872)
• React-native: show webpack-related build issues (#4883)
• Addon-info: fix docgen description display (#4685)

Dependency Upgrades

• Bump svelte to 2.15.3, addresses !4478 (#4842)