cleaned up, removed warning under MSVC2005 (Level 4)

Mostly related to alignment and unused variables

src/LinearMath/btAlignedAllocator.h

@@ -55,6 +55,7 @@ public:
 	pointer       address   ( reference        ref ) const                           { return &ref; }
 	const_pointer address   ( const_reference  ref ) const                           { return &ref; }
 	pointer       allocate  ( size_type        n   , const_pointer *      hint = 0 ) {
+		(void)hint;
 		return reinterpret_cast< pointer >(btAlignedAlloc( sizeof(value_type) * n , Alignment ));
 	}
 	void          construct ( pointer          ptr , const value_type &   value    ) { new (ptr) value_type( value ); }