OK, I made it

. If a

near an

taunts while in the air (i.e. in jump), the

is healed by some amount, or it's building is advanced by some amount.
The modified sources are at
github.
To see what has been changed, see
the diff.
The compiled QVM is available
here.
If you want to see it in action, tell me (I'm most often at R-Unlimited-CZ) and I'll show it on a private server.