v0.6 - Gravity Machines now respect WorldGaurd regions. Machines will not activate if the area it will lift contains a territory owned by another player.
v0.8 - Gravity Machines now build faster than ever! WARNING: This file only works with Minecraft version 1.6.4.
Inventories of Brewing Stands, Trapped Chests, and Double Chests are not saved after being lifted.
Currently machines do not log blocks placed (but they do log blocks removed). The next update should have both features.