- fix w4 warnings

- add convenience macros for config_db(CFG_GET_SYS_VAL)
- VFSUtil::EnumDirEnts now uses flags instead of bool recursive
- UNUSED() for params, UNUSED2 (<- need better name) for variables
- config.h defines must be tested with #if (always defined) -> allows
detecting misspellings thanks to compiler warnings
- replace debug_assert(0) with debug_warn (its sole purpose)
- replace ScriptingHost::ValueToInt et al with ToPrimitive
- use nommgr.h to disable both mmgr and VC debug heap

This was SVN commit r2585.

source/scripting/ScriptCustomTypes.cpp

@@ -21,7 +21,7 @@ JSPropertySpec Point2dProperties[] =
 	{0}
 };
 
-JSBool Point2d_Constructor(JSContext* UNUSEDPARAM(cx), JSObject* obj, uintN argc, jsval* argv, jsval* UNUSEDPARAM(rval))
+JSBool Point2d_Constructor(JSContext* UNUSED(cx), JSObject* obj, uintN argc, jsval* argv, jsval* UNUSED(rval))
 {
 	if (argc == 2)
 	{
@@ -56,7 +56,7 @@ void SColour::ScriptingInit()
 	CJSObject<SColour>::ScriptingInit( "Colour", SColour::Construct, 3 );
 }
 
-jsval SColour::ToString( JSContext* cx, uintN argc, jsval* argv )
+jsval SColour::ToString( JSContext* cx, uintN UNUSED(argc), jsval* UNUSED(argv) )
 {
 	wchar_t buffer[256];
 	
@@ -68,7 +68,7 @@ jsval SColour::ToString( JSContext* cx, uintN argc, jsval* argv )
 }
 
 
-JSBool SColour::Construct( JSContext* cx, JSObject* obj, unsigned int argc, jsval* argv, jsval* rval )
+JSBool SColour::Construct( JSContext* UNUSED(cx), JSObject* UNUSED(obj), uint argc, jsval* argv, jsval* rval )
 {
 	debug_assert( argc >= 3 );
 	float alpha = 1.0;