Code review comment for lp:~ab-tools/widelands/msvs2010-compilewarnings

There are a lot, so this list is hard to access. Let's take this in small steps then.

I tried fixing the error in c:\widelands\widelands\src\logic\immovable.h:163 in r6618. And i tried to fix the pragma warning in field.h in r6619. Could you redo the list?