Fixed "/reload" support for 1.13+. Was originally broken as 1.13+ appears to be case sensitive, meaning "/BetterReload:Reload" was an invalid command.
Added tab completion for "/betterreload:reload" (all versions) and "/reload" (1.13+?).
Added the ability to reload specific plugins with the "/reload" command. Type "/reload" to reload all plugins or "/reload pluginName" to reload specific plugins.