Bufixes: Training Mode, Heal Bot, Check Players.

Small bugfixes

This version contains small bugfixes to:

• HealBot: wasn't correctly following rules in certain situations.
• Training Mode: no longer requires TargetBot to be enabled when picking Current or Party Member as targets.
• Check Players: now caches per player name, and for up to 300 minutes, so constant checking is avoided (e.g. when training).