v0.3.0: Big update

- Drop support for versions < 1.13, as I don't want to install that many versions of d2 to get the offsets
- Add config with a few options
- Add support for ignoring time spent in town past a certain threshold, to allow for stash management without ruining xp/min (default is 20 seconds)
- Time spent paused is now ignored for game-time xp/min calculations
- Add run tracking and # runs till level
- Reformat console output to be more readable/concise
- Add /players x value to output
- General improvements/bug fixes/refactoring
- Add a bunch of stuff for calculating real xp gain (area level, player level pentalty, /players x), but don't have a good way of displaying it yet and its not quite done (relevant console output is disabled by default)
- Now depends on luabitop