2019-06-28 v2.3.7: support for Sketch 51 🙌Crystal 2.3.8 Update
v2.3.6: added artboard auto-selection preference
v2.3.5: updates connecting gif for Sketch 49
v2.3.4: Crystal now supports 18:9 aspect ratios 📱
v2.3.3: adds back support for the old mirror API (Sketch versions 42 and older)
v2.3.2: fixes usb connection issues on some devices