Hides plugins from players, blocks the following commands:
"/pl"
"/bukkit:pl"
"/plugins"
"/bukkit:plugins"
"/ver"
"/bukkit:ver"
"/version"
"/bukkit:version"
"/?"
"/bukkit:?"
"/help"
"/bukkit:help"
"/about"
"/bukkit:about"
"/icanhasbukkit"
"/bukkit:icanhasbukkit"
unless the player has the permission hide_plugins.bypass