5.2.0
refactor(box): remove Bluebird.asCallback (#4379)
fix(router): convert string to buffer in route stream
perf(injector): shorthand optimization (#4462)
fix(filter/highlight): avoid escaping curly bracket when highlight & prismjs are disabled (#4489)
refactor(test-generators-page): arrow function (#3956)
chore: use example.com for example domain (#4512)
Merge pull request #4518 from curbengh/fm-disable-nunjucks
test: improve coverage (#4421)
refactor(nunjucks): dedicated nunjucks renderer (#4356)
revert(#4401): "test: replace sinon#assert" (#4404)