* NEW: Add support for migration to UUID-based player identification, 
  via the new "/ctool migrate" command (op only).
* NEW: The ToolManager, ToolStores and CommandTools are now thread-safe.
* BUG: If a ToolStore already exists in the storeList, it is not added anymore.
* NEW: Add support for migration to custom attribute based tools.
* NEW: The migration now creates a list of all the migrated names -> UUIDs associations, useful for migrating tool items into the new format.
* NEW: Updated version to 1.0.99
* BUG: Tools don't take the Block click into account
* NEW: Added a /ctool remove command. It simply removes a CTool from your inventory (like throwing it in lava).
* NEW: Added the ability to disable command tools. Useful for avoiding mistakes if CTools is not used much.