v0.4.0

New stuff

• <Stylesheet>
• <Preload>
• More examples

Commits:

• Add docs about Stylesheet ba247c7
• Update readme e955d63
• Merge pull request #15 from palmerhq/feature/stylesheet ba9cdd4
• Export element resources 0afeae3
• Remove dist references from root 5620579
• Added Stylesheet, standardized errors, removed attribute copying 51dcad0
• Update README.md b9fe78a
• v0.3.1 9b36ac4
• Merge branch 'master' of github.com:palmerhq/react-async-elements a15dce0
• Fix audio afe938c
• Update README.md a40ce84