Increase the intelligence of Healers. No point to heal troops that aren't hurt

Many time I do Healer/Giant raids and follow them up with archers. What happens quite often is a healer will be healing a the group of giants while archers are also within range. the giants will walk out of range and instead of following the giants, the healer will stop and heal the archers. The reason this is lame is that the archers were never hurt and were already at 100% while the giants were taking damage.

Healers should be made smarter so that they will follow the troops that are actually hurt since their job is to heal and uninjured troops don't require healing.

If a troops that is being healed goes out of range or dies, the healer should find the nearest group of troops that actually needs some healing instead of just healing items that aren't hurt...