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.