Planet SoC

Hi! Aaaaalright, got a couple of mostly annoying, but quite useful to fix to ease the playing, bugs fixed:

• Object selection bug in Operation Stealth (Fixed in r33620 in trunk)
• Text prompt updating regression (Fixed in r33637 in trunk, backported to branch-0-12-0 in r33638)

So, savegames and the interface in Operation Stealth are working good enough now to start the game completion run. So, Operation Stealth, here I come! Wish me luck