v0.4.0

Bugfixes

• fix: promise, null validation. use joi.bind (#76)
• fix: z-index on overlays set to max allowed (#82)

Features

• feat: static middleware options (#83)

Updates

• chore(meta): Add support for node 11 in 'engines' (#74)
• chore: update type definitions (#84)
• docs: add client file concepts (#68)
• docs: add vue recipe (#72)
• docs: add size badges to FEATURES.md (#75)
• docs: fix option name on example (#77)