RTC setting improvement via push button menu

[zymurgic]

If Real-Time Clock isn't set, and if we're not setting via the wifi module then the YEAR_MIN should now be a bit more recent to save button pushes. Perhaps YEAR_MAX for the pushbutton menu interface should be more than 10 years later? What's the expected lifespan of this system before we'd expect firmware updates to be applied?

[lincomatic]

there's a trade off between convenience of not having to cycle through too many years if you overshoot and adding years to the menu. it's open source... you're free to change the parameters to suit yourself. thank you