First commit of 2008, Happy New Year!

Add option to compile without btClock and without profiling: comment out USE_BT_CLOCK, and #define BT_NO_PROFILE
Fixed typo/case in #include "LinearMath/btQuickProf.h", in SpuParallelSolver.cpp
Removed unnecessary files from libxml CMakeLists.txt

Demos/RagdollDemo/RagdollDemo.cpp

@@ -364,8 +364,8 @@ void RagdollDemo::clientMoveAndDisplay()
 	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); 
 
 	//simple dynamics world doesn't handle fixed-time-stepping
-	float ms = m_clock.getTimeMicroseconds();
-	m_clock.reset();
+	float ms = getDeltaTimeMicroseconds();
+
 	float minFPS = 1000000.f/60.f;
 	if (ms > minFPS)
 		ms = minFPS;