* Implemented a universal cache for loaded players
* Reworked a significant amount of my API additions
* Simplified join/quit handling
* Cleaned up ISpecialEnderChest/ISpecialPlayerInventory implementations
* Fixed OpenInv.* permission not granting access to commands
Restored some old OpenInv behavior - Offline name partial completion.
Currently there's no minimum similarity to consider a match a success, and the first name with the same similarity will take precedence. As a result, you may see some very odd results on occasion.
Edits made to online players will still work. Edits made to offline players will work if they log in before the ISpecialPlayerInventory is unloaded (currently before the plugin unloads).
Closes#6
Refactored IPlayerDataManager to PlayerDataManager, it's no longer an interface.
Fixed a bug with players' online state initially being inverted
Among other things, these interface changes allow for supporting pre-UUID Minecraft versions again. I may eventually backport older versions, but I don't know that I'll be able to lay hands on old enough jars.
Removed static access
Renamed all methods to follow conventions
