Merge pull request amethyst#843 from amethyst/develop

Amethyst 0.8 Release: Push to master

Merge amethyst#730

730: Prepare 0.7 release r=Xaeroxe a=Xaeroxe

Closes amethyst#677 
Closes amethyst#553 

@Rhuagh I also added the note you requested to README.md

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Co-authored-by: Jacob Kiesel <[email protected]>

Add some readme files and bump versions

Handle meta prior to release

Release 0.4.3

Update Cargo.toml for all crates

Add missing versions to Cargo.toml

Update renderer README.md

Merge pull request amethyst#95 from ebkalderon/release-0.3

Prepare for release 0.3.1, close amethyst#86 amethyst#94