added btGetVersion(), return integer without the fraction: for example 2.64 returns 264.

moved more demos into AllBulletDemos

Demos/GjkConvexCastDemo/main.cpp

@@ -0,0 +1,17 @@
+
+#include "LinearConvexCastDemo.h"
+#include "GlutStuff.h"
+
+int screenWidth = 640;
+int screenHeight = 480;
+
+int main(int argc,char** argv)
+{
+
+        LinearConvexCastDemo* linearCastDemo = new LinearConvexCastDemo();
+
+        linearCastDemo->initPhysics();
+
+
+        return glutmain(argc, argv,screenWidth,screenHeight,"Linear Convex Cast Demo",linearCastDemo);
+}