run time of the function updateActions()

What steps will reproduce the problem?
think the case like this,put a vehicle in a slope,old 
internalSingleStepSimulation() like this:
1.apply the gravity,and the vehicle has a velocity u0
2.apply the transform
3.update vehicle(correction the velocity produced by gravity),which will be -u0
next frame
1.apply the gravity and the vehicle has a velocity (u1 - u0)
2.apply the transform
3.update vehicle(correction the velocity)
.......

loop,the vehicle will be moved by the delta velocity (u1 -u0)every frame,this 
is not right.
so,i think updateaction() should work before integrateTransforms()

What is the expected output? What do you see instead?

so,i think updateaction() should work before integrateTransforms()
What version of the product are you using? On what operating system?
2.81

Please provide any additional information below.

Original issue reported on code.google.com by chineseo...@gmail.com on 29 Oct 2013 at 5:53

pombreda / bullet

run time of the function updateActions() #760