Bumps [acorn](https://github.com/acornjs/acorn) from 7.1.0 to 7.1.1.
- [Release notes](https://github.com/acornjs/acorn/releases)
- [Commits](acornjs/acorn@7.1.0...7.1.1)

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* Attempt to allow fuzzy-match filter in json-api

Notes
-----
Regarding integration into fortune.js

I am unsure what field of request.options may be used.
As I understand it, Adapter.find leaves the possibility of extra
fields on the options object unspecified. Therefore, I added the
fuzzyMatch on the ptions object.

Regarding validity JSON:API

Filtering is relatively unspecified. As such, I assume the extra filter
type is legal.

* WIP: first version filtering relationships

* abstract away filter parsing.

* fix with auto lint fix

* further linting tests

* bugfix exception handling

* added a unitest. Note:

- It relies on a unrelease version of fortune.js to make it run.

…constructor (#81)