Jupyter-lsp

- features
- adds an indicator to the statusbar
- and many other improvements, see the [release notes](https://github.com/jupyter-lsp/jupyterlab-lsp/releases/tag/v0.6.1)
- dependencies
- removes unused npm dependencies

- features
- allows "rename" action in file editor
- bugfixes
- handles some non-standard diagnostic responses
- testing
- adds browser-based testing for file editor
- dependencies
- requires `jupyter-lsp`

- features

- starts language servers on demand
- accepts configuration via Jupyter config system (traitlets) and python
`entry_point`s
- autodetects language servers for bash, CSS, LESS, SASS, Dockerfile, YAML, JS,
TypeScript, JSX, TSX, JSON, YAML

- bugfixes
- fix issue that variables declared in cell magics(%%time, %%capture) are masked(
[635](https://github.com/jupyter-lsp/jupyterlab-lsp/issues/635)
)

- added `sendSaved()` method (textDocument/didSave) (
[147](https://github.com/jupyter-lsp/jupyterlab-lsp/pull/147)
)
- fixed `getSignatureHelp()` off-by-one error (
[140](https://github.com/jupyter-lsp/jupyterlab-lsp/pull/140)
)

- infrastructure
- brought into monorepo [107](https://github.com/jupyter-lsp/jupyterlab-lsp/pull/107)
- dev
- allows `initializeParams` to be overloaded by subclasses
- adopts
- typescript 3.7
- prettier
- tslint
- added initialization checks before executing sendChange to comply
with LSP specs [115](https://github.com/jupyter-lsp/jupyterlab-lsp/pull/115)