Merge https://github.com/minetest-mods/mesecons into HEAD

mesecons_solarpanel/doc/solarpanel/description.html

-Solar Panel are light receptors: they turn on if there is enough light.
+Solar panels are light receptors: they turn on if there is enough light.
+They only work in active blocks; in inactive blocks they keep their old state.

mesecons_switch/doc/switch/description.html

-The switch is a receptor. It changes its state as when punched.
+The switch is a receptor. It changes its state when punched.

mesecons_torch/doc/torch/description.html

 The torch is an inverter, it may take up to 1 second until the signal has passed through. The input is 2 blocks away in the direction of the stick, outputs are around the mesecon glow.
+It doesn't work in an inactive block; it just retains its state until the block becomes active.

mesecons_wires/doc/mesecon/description.html

-Mesecons are the wires, use them to connect effectors with receptors.
+Mesecons are the wires, use them to connect effectors with receptors. Wiring works through unloaded blocks; they’re loaded when the signal level changes.

settingtypes.txt

@@ -24,6 +24,10 @@ mesecon.luacontroller_digiline_maxlen (Digiline message size limit) int 50000 10
 mesecon.luacontroller_maxevents (Controller execution time limit) int 10000 1000 100000
 mesecon.luacontroller_memsize (Controller memory limit) int 100000 10000 1000000
 
+# Use node timer for interrupts (runs in active blocks only).
+# IID is ignored and at most one interrupt may be queued if this setting is enabled.
+mesecon.luacontroller_lightweight_interrupts (Lightweight interrupts) bool false
+
 
 [mesecons_movestones]