etcher version 1.3.1

This is the part of #1718 that is not yet resolved.

I launch the app and flash a disk, and it transmits my activity to multiple third parties (google analytics and mixpanel and some other one) without my consent or even warning me that it's doing so so that I could e.g. discontinue use of the spyware app.

Please fix this. Transmitting user data without ADVANCE, OPT-IN consent is unethical.