detect double, single and long press from wall switch

[janbart]

Good job, though you can do it without any event-based scripts

Some suggestions:
1. You don't need to use storage inside of resident script as variables are kept between each call. You can simply use a Lua table to store timer values for each group address.
2. You should use storage instead of grp.update for counters as you don't need to display this info in visualization or pass it to gateways.

According to second suggestion: I need to update counter object because second script (the one that turns on the lights) runs on updating it. Is it possible to tie lua script to storage variable so I can run script when variable changes?