v0.3.1

Automatic pre-release of 0.3.1 for 08dd5b3

(pre-release: please backup your Config data or use test server)

Resolves #2 in adding level tracking. There's two new settings

## Include player gear levels in announcements.
# Setting type: Boolean
# Default value: true
IncludeLevel = true

## Use max gear level instead of current gear level.
# Setting type: Boolean
# Default value: false
UseMaxLevel = true

With UseMaxLevel the levels show with an * to indicate it's the maximum they've ever been involved in a tracking event. Tracking max level occurs inside the current PVP kill event tracking.

This minor change updates readme and addresses #3.