Renames ALERT_TYPE_* to STAT_TYPE_* and ERadarAlertType to ERadarStatType
Removes mIn*Frame and accessors for these in favor of checking for the bit in mStats
Use mStats instead of mAgeAlert now.
Moves the range leave handling out of getAlive and into setPosition, where it logically belongs
Should fix Issue 43: Radar reports multiple times for agent entry upon rendering