* switch hello-world tag to PascalCase (#951)

* fix Es6 code issue.

This file is not transpiled, so we should stick to ES5

* Fix bug in dev-server when a proxyTable entry is a string (#965)

`options` can not be a `const` because it is modified if value is a string.

* Fix casing

* Revert 9befbfc

* update to vue and vue-router latest version (#984)

- vue 2.5
- vue-router 3.0

* fix missing dependency updates for

* vue-template compiler
* vue-loader

* bump version string