Version 1.1.0

• Adds support for user post-processing of HTML after pre-rendering #4
• Bundles an app.html file which is not prerendered, and should be used as
  entrypoint for non-prerendered routes #14
• Support multi-page mode (by @snadn) #10 (implementation #11)
• Support non-default baseURL (by @snadn) #6 (implementation #9)
• Writes configuration using the API extendPackage function, which writes to
  vue.config.js. If found, the old configuration will be copied over and
  converted on vue invoke (and read, but not converted on build).