v1.6.0

What's Changed

• Feature - Add default language option by @timlrx in #59
  You can now pass in {defaultLanguage: 'py'} or your most commonly used language and save the hassle of specifying it at every code block level. Note that defaultLanguage takes precedence over the ignoreMissing setting. The defaultLanguage should be registered with refractor, otherwise the plugin will throw an error message.
• Update dependencies

Full Changelog: v1.5.1...v1.6.0