Fixed texture atlas messed up from DPI.

fix sdf AA for sub-pixel text rendering

Marginally improved the main menu example.

Added settings to turn on/off subpixel rendering.

subpixel text rendering

Added computed styles. Breaking change!

- Widget's with styles must also include a ComputedStyles component and set it to equal to your styles object.

Export the cursor types.

Fixed issue where wasm fails to build.

Native msdf

Update link to font chapter

It was a link to `chapter_5.md`, which is chapter 4. I changed it to `chapter_6.md`.

Update book to reflect crates.io release

Remove old UICamera spawn

Fix app not updating if camera width/height changes

Fixed scrolling.