Lots of gcc -Wall fixes. The common ones:

- switch() statements don't handle all values in an enum
- missing \n at end of file
- non-virtual destructors in classes containing virtual functions
- order of initializers in constructor initializer lists
... some other stuff (signedness, nested comments, unused variables) as
well.

This was SVN commit r2864.

source/graphics/ObjectBase.cpp

@@ -34,7 +34,7 @@ bool CObjectBase::Load(const char* filename)
 	#define EL(x) int el_##x = XeroFile.getElementID(#x)
 	#define AT(x) int at_##x = XeroFile.getAttributeID(#x)
 	EL(actor);
-	EL(castshadow);
+	//EL(castshadow);
 	EL(material);
 	EL(group);
 	EL(variant);