Based on the BuilderControl plugin by boardingamer. (I had to pick a different name due to BukkitDev policies.)
Control what players can place and interact with in the world. The available permissions allow for disabling of TNT, water, lava and TNT minecart placement; attacking mobs and players; opening block/entity based inventories (chests, hoppers, villagers, storage carts, .etc); throwing potions, eggs, snowballs, and Bottles o' Enchanting; and prevent the use of Spawn Eggs.
Before you ask me to update to a specific build, here are some things to consider:
Do NOT message me unless I ask you to.
I do have a Twitter Account should something happen.
Otherwise, you can submit a ticket with the proper information and I might able to help you out.