Ensure render entities are correctly despawned

Update metadata for 0.9.2

Merge pull request #50 from james-j-obrien/bevy-0.15

Compatiblity patch for Bevy 0.15

0.8.1 version bump

Bevy 0.14

Merge pull request #38 from james-j-obrien/bevy-0.13

Update to Bevy 0.13

Remove unused dep

Bump version

Bump version and apply lints

Improve HDR on canvases and the canvas_bloom example