fix for issue #840: Basic Training - Grenade is failing to dismiss team

expose FlightTime to lua, disable in-air flame harming moving hogs ☹ aaaand override that in ClimbHome ☺

don't forbid running regular chat commands during turns of other teams. that was probably only meant for emotes to begin with

delay cake boom until it has walked a little bit. also fix accidental drowning of watergods in last commit

add a half-second flighttime delay to flamethrower flames so they can leave the "barrel" of the flamethrower without burning the hog

Should prevent desync hopefully. Thanks unc0rr

fix copypasta-fail that would cause splashes to use invalid sprite data pointer. should fix issue #838

oh right, forgot sheepluva had fixed ice

give sea world edges some icegun love

Wuzzy's changes to climbhome w/ some tweaks by me

Reset max team health after script may have screwed with it on start. Maybe a script max health reset function could be useful too. Set climbhome hogs to invulnerable while not their turn if needed to avoid accidental mine/dead hog damage. Tweak cake fire boom a bit.

Move cake FollowGear to Attack like most others, remove the gmAttack clearing which is also done in Attack.

duplicate the ammoshove block into the falling fire area - this will make falling flames take out hogs in saucers, on rope, etc. no more dodging your own napalm strike by taking to the skies...

don't drown unplaced hedgehogs. thanks to zimmux and Wohlstand for reporting

some moar mergin'