1.4.0

Minor release, because of native changes related to fixing the evaluation logic:

Features 🎉:

1. Add tvos podspec support (#440) @keshavkaul
2. Allow to pass a callback as parameter of useCode() (#408) @wcandillon

Fixes 🐛:

1. Refine debug() typing (#434) @wcandillon
2. Fix node dirty marking when new connection between nodes is made (#450) @kmagiera
3. fix: mock.js NOOP to allow for "new" constructor call (#439) @ajsmth

Docs 📖:

1. Add Jest doc to the README @PierreCapo

Many thanks!