Added star argument support for commands

The command parser will now detect stars (*) as arguments and pass them on through to a command's onRun.

This is useful for commands like /flaggive or /flagtake, because you can just do /flaggive [name] * to give a character all flags. These commands have been changed to use star args to provide some sort of usage sample.

Due to the way it's implemented I guess you could also use this for whatever other stuff.