Severly outdated dependency on "ada"

I get several warnings from ```npm audit```, all because of bibtex-parse-js using a very old version of ava.
(which in turn uses other packages with serious security risks).

uses 0.15.2, current 4.3.3

-> Please update/upgrade your dependencies. 

Note that npm install/upgrade will only update minor versions by itself not major.

Audit issues for ava are: 0.6.0 - 2.4.0