Vault is only needed if you are going to use the economy features. You can find it here: (https://dev.bukkit.org/projects/vault)

Permissions:

• wooltrees.plant
  • Allows a user to plant wool trees with dye.
• wooltrees.ignorecost
  • Allow a user to plant for free no matter what the cost is.
• wooltrees.adjust
  • Allows in-game commands to adjust config values
    • </wooltrees,/wt,/wt help> Brings up the help menu with the commands.
    • </wooltrees,/wt> defgen <true,false> Default Generation (Old WoolTrees method)
    • </wooltrees,/wt> tree <0-100> % of a wool tree spawning.
    • </wooltrees,/wt> big <0-100> % of trees that become big trees.
    • </wooltrees,/wt> cost <0+> Cost to plant a tree.
    • </wooltrees,/wt> check <true,false> Height Check. (Checks if the trunk is blocked)
    • </wooltrees,/wt> light <0-15> Light Level needed for a tree to spawn.
    • </wooltrees,/wt> bonegen <true,false> Bonemeal Generation
    • </wooltrees,/wt> natgen <true,false> Natural Generation (Random tree spawns)
    • </wooltrees,/wt> wool <0-100> % of wool blocks not replaced with air.
    • </wooltrees,/wt> pattern <true,false> Pattern Trees.
    • </wooltrees,/wt> trunk <true,false> Wool Trunks.
    • </wooltrees,/wt> here [wool%] [big] [color(s)]