Add ghoststone, crafted like removestone, with steel ingots at the corners. Trapstone disappears upon mesecon signals, but unlike removestone, reappears after the mesecon signal turns off.
Captilization.
Fix whitespace, simplify node updating.
New pistons activation mechanism, fixes many of the issues reported when pushing mesecons around. Side effect is that it might be somewhat slower, and it waits a tiny delay before extending or retracting. This should be unnoticable in normal use.
Improve T-FF code and add a reset pin on C.
Further piston improvements, the pistons now delay before retracting and play nice with invalid states.
Use add_node since place_node only works with ItemStacks and can't specify param1/param2 value. This fixes pistons pushing pistons/torches/etc.
Add command block:

* not obtainable legitimately in Survival mode
* found in Creative inventory or using /giveme mesecons_commandblock:commandblock_off
* glows slightly when turned on
* runs a command in the context of the targeted player
* player can be targeted by name, or using the special forms (@nearest, @farthest, @random)
* when powered, runs its command with its parameters
* right click to bring up the configuration screen
* diggable and modifiable only by its owner, the person who placed it
Update tile_images
Merge pull request #55 from Jat15/master

tile_images modified tiles
Use nodeupdate() so things like pushing gravel/sand off a ledge allows it to fall.
Merge remote-tracking branch 'origin/master'
Fix a rare piston pushing bug and make piston updating faster.
Simpler piston push/pull method.
`mesecon:updatenode()` was written to work only with conductors, though in several places it was used on recepters and effectors. This issue, reported by simion314, is fixed in this commit by explicitly checking for the type of mesecon node being updated.
Fix a bug (in some cases the output rules of a receptor weren't respected, bug introduced by commit before, 64d109b31b)
Speed update of pressureplates up by using node_timers
Merge pull request #58 from PilzAdam/master

Speed update of pressureplates up by using node_timers
Add support for the preinstalled wooden door in minetest_game
New branch: Move mesecon to node definition instead of functions like register_conductor; first steps: move everything to legacy