Dash for R v0.4.0

Added

• Support for inline clientside callbacks in JavaScript #140
• Support for arbitrary file extensions for assets within component libraries #186
• Dash for R now provides a show_undo_redo parameter as in Dash for Python #194
• Additional unit tests for index customization #176
• Send status code when unit tests fail #177
• Assorted unit tests for Dash for R #179
• Nested and standard components test #191

Changed

• dash-renderer updated to v1.4.1 #195
• dashHtmlComponents updated to v1.0.3
• dashCoreComponents updated to v1.10.0
• dashTable updated to v4.7.0