Maintenance updates and fixes for #57, #58, #59, and #60.

Includes fix from #52

Fixes #48

Fixes root drop targets.

Mosaic now renders a flattened version of the provided tree. This means that layout changes no longer force components to unmount and remount. Component state will be preserved and time will not be wasted re-rendering.

Breaking Changes

• DOM structure is very different - highly likely to cause problems with custom styles
  • Rendered structure is now flat
  • .mosaic-root class renamed to .mosaic
• T now must extend MosaicKey (string or number) so that they can be used as a React.Key
• getMosaicPath has been moved to MosaicWindowActions as getPath
• TileRenderer is now also passed the current path MosaicBranch[]
• MosaicWindow now requires the path: MosaicBranch[] prop

Other Notes

• T now defaults to string

Now supports the Blueprint Dark Theme with the addition of the pt-dark class.

Fixes #40.

Tunes #33

Fixes dangling comma

react-mosaic now supports React 16!

Fixes: #32, #33, #36

Internal notes:

• Switched from TS to TSX
• Indent size changed to 2

Allow consumers to pass arguments to CreateNode