Refactoring release. Replaced erroneous usages of ArrayList with HashSets. This may result in some API changes, so gamemode plugins should be checked against the new build in case they need to be recompiled.
In particular: Team.getPlayers() now returns a Set (and is backed by one). Plugins that directly access this method will need to be recompiled against AthenaGM 1.0.7. AthenaKOTH has been updated in anticipation of this.