made 'calculateLocalInertia' const, thanks to cgripeos, see http://www.bulletphysics.com/Bullet/phpBB3/viewtopic.php?f=9&t=1514

- applied a large patch to remove warnings
Thanks to Enrico, see http://www.bulletphysics.com/Bullet/phpBB3/viewtopic.php?f=9&t=1568
- removed SSE includes, added #incude <string.h> for memset in Extras/quickstep, thanks Eternl Knight
- disabled 16-byte alignement on btQuadWord class, it causes problems under PS3 Linux. Need to check out why.

Demos/RagdollDemo/RagdollDemo.cpp

@@ -28,10 +28,19 @@ Written by: Marten Svanfeldt
 
 GLDebugDrawer debugDrawer;
 
-#define M_PI       3.14159265358979323846
-#define M_PI_2     1.57079632679489661923
-#define M_PI_4     0.785398163397448309616
+// Enrico: Shouldn't these three variables be real constants and not defines?
 
+#ifndef M_PI
+#define M_PI       3.14159265358979323846
+#endif
+
+#ifndef M_PI_2
+#define M_PI_2     1.57079632679489661923
+#endif
+
+#ifndef M_PI_4
+#define M_PI_4     0.785398163397448309616
+#endif
 
 class RagDoll
 {