Add an ABM function which resets heat to 0, since gates/controllers won't be cooled normally if they are moved (piston, etc...) during the cooling delay.
Merge pull request #106 from Novatux/heat

Add an ABM function which resets heat to 0, ...
Change mesecons signals so that they update effectors only after a globalstep, configurable to be on/off
Fix README a little and add piston sounds by suzenako, contributed by jordan4ibanez.
Fix bug where functions in Luacontroller EEPROM crashes the server (fixes #107).
Support cyclic references in luacontroller memory tables, prohibit usage of goto statement (bugs reported by Nore).
mesecon:rules_link nil return rule
Fixes https://github.com/Jeija/minetest-mod-mesecons/issues/108
Fix pistons not updating the nodes when placing them again.
Crossover
Descend µ in comment
Merge remote-tracking branch 'refs/remotes/origin/master'
Audit code for possible nil value indexing with unregistered nodes.
Merge pull request #112 from khonkhortisan/multi_rules

Multi rules
Merged for near-future textures to be merged cleanly.
Give crossing proper textures
Merge pull request #119 from VanessaE/master

Give crossing proper textures
Escape microcontroller code in formspec
Upgrade CC-BY-SA License to 3.0

Permitted according to section 4b of CC-BY-SA-2.0:
"a later version of this License with the same License Elements as this License"
Add LICENSE.txt

LGPLv3 for code,
CC-BY-SA-3.0 for everything else
This should makes it easier for packagers of distributions
Update Microcontroller Tutorial and add .odt source for the .pdf
Make blinkyplants toggleable