* cleaning up warnings (mostly windows). A collection of other warning fixes too (undefined function, assuming int, etc.)

This compiled fine with scons/msvc and scons/mingw (gcc 4.4.0). Please test and report any problems.

intern/string/STR_String.h

@@ -54,6 +54,10 @@ using namespace std;
 #include "MEM_guardedalloc.h"
 #endif
 
+#ifdef _WIN32
+#define stricmp _stricmp
+#endif
+
 class STR_String;
 
 typedef  unsigned long dword;