Engineer abilities now taking damage from damage shields

[wargrimnir]

Napalm/Mist effect has several applications, all of them currently are being treated as direct damage, which allows things to proc based on that damage, and also triggers reflect shields to work by standing in it. "Fixing" napalm means making it apply as DOT damage, which is probably far more correct considering once it's put down the Engi/Magus no longer have control over it. This was discussed a bit in the Bane Shield thread, and also needs to be updated in code somewhere.

In other words, Napalm will stop being direct damage, pulsing and proccing all sorts of nice nice goodies. Careful what you wish for. Engi/Magus wanted a fix but end up with nerf.

This would also include blasting potions, which also probably shouldn't be proccing anything.