Reorganize changelog.
Reorganize changelog.

kevinschaul/nunjucks,mozilla/nunjucks,mozilla/nunjucks,kevinschaul/nunjucks,devoidfury/nunjucks,oddbird/nunjucks,internalfx/nunjucks,devoidfury/nunjucks,devoidfury/nunjucks,mozilla/nunjucks,internalfx/nunjucks,internalfx/nunjucks,oddbird/nunjucks,kevinschaul/nunjucks,oddbird/nunjucks,oddbird/nunjucks,internalfx/nunjucks,kevinschaul/nunjucks