v4.9.4

Paolo Benvenuto

@paolobenve

c9404a80 · Merge branch 'release/v4.9.4' · Dec 13, 2020

version v4.9.4 (Dec 12, 2020)

* fixed sorting procedure
* other bug fixes
* replace `uglifyjs` minifier by `uglifyjs.terser` (pmetras)