Loosened up the mana requirements to use Frost Wall.
We now only try to move into the LOS with the target based on ranged LOS, not melee.
Smarter targeting based on line of sight.

Rather than dive into a pack of mobs in order to gain LOS with the default
mob (which would typically be a blue/yellow), we first check to see if there
are any mobs already in LOS. If there are any mobs in LOS already, target
those first.
Fixed a typo.
Prevent CanCast spam.
Don't cast Frost Wall while in a party.
Temporarily disabled the Default Attack.

This was causing issues with the bot running into a pack
of mobs when low on mana.
Merge branch 'dev' into release