-- Started with Mikola's update. Changes so far look very good, and they're significant enough to bump version to 2.0.
-- Updated left-click use. Left-click does single node_dig without repeating. Sneak left-click brings up formspec.
-- Added User config formspec with three items: Remove reference nodes, Dig non-train tunnels, and Continuous updown digging.
-- Remove reference nodes replaces chat commands.
-- Dig non-train tunnels allows digging 5x5 unlined tunnels without references, gravel, etc.
-- Changed lights back to torches with option to use mese_post_lights.
-- Prefixed all minetest.conf settings with tunnel_, but didn't update settingtypes.txt.
-- Removed the few characters in comments that linux reported to have encoding problems.
-- Added flip and rotate support to run_list, so one only needs to give the seven base digging patterns, instead of all 32.
-- Still in the process of validation and verification. Each time new options are added, this process gets harder.
-- Added sounds for digging, but need better one for tunneling.
-- Per Mikola's comment, license is TBD. Need reference to code actually borrowed.
-- Version 1.X.X
-- Removed the crafting scheme for the tunnelmaker tool. Normal players do not need to craft the tunnelmaker tool, and the administration can use the command /give <name> tunnelmaker:tool1 .
-- Added the ability to make a mound of gravel (or any other material) and an additional base under the gravel.
-- Custom configurations are made in settingtypes.txt and accessed in the main menu minetest / advanced settings / mods / tunnelmaker.
-- Add additional user configurations.
-- Optionally enable the use of other materials in desert biomes.
-- Optionally disable to replace the coating of tunnels on a specific coating.
-- Optionally disable wide paths in the woods
-- Optionally disable gravel mound and additional base.
-- Optionally disable markup for the railway advtrains.
-- Now you can change any material that is used in the tunnelmaker
-- Added coverage in underwater tunnels
-- When using "Glass walls", underwater tunnels have become completely sealed.
-- Added the function of automatic replacement of material markup on the road surface. Use the remove_marking <on | off> command.
-- Now for the operation of the functions of the mod is not required creative mode.
-- Now on the floor of the tunnel there is always a specific coating.