Fix sticky piston retraction not working
Include experimental vertical wires (needs textures)
Upload cleaned up mesecons to nextgen branch
Bugfix, param2 for conductors
Bugfix, use param2 for conductors when turning them on/off
Attempt to update the wire crossing.
Place up/down pistons automatically depending on the player look direction, remove the craft recipes for up/down pistons, and unify all the pushing/pulling behaviors into mesecon:piston_push(pos) and mesecon:piston_pull(pos).
Fix placing while facing diagonally.
Merge branch 'master' into nextgen

Conflicts:
	mesecons_pistons/init.lua
Cleanup and improve piston code
Remove mesecons:updatenode
Fix addPosRule without mesecon: in vertical wires (issue #62)
Minor cleanup, use addPosRule
Fix #62 (Hopefully this time)
Use a simpler way of detecting up/down piston placement (thanks Jeija).
Merge remote-tracking branch 'origin/master'
Should fix this bug: bit.ly/XEy94j
Merge branch 'master' of https://github.com/Jeija/minetest-mod-mesecons
Fix bug reported here: http://bit.ly/VOF35X
Same for sticky piston