Hi
I have had a quick look at your logs and they show that your hover throttle value is much higher than usual, which would explain the issues you describe. The cause of this could be due to a couple issues:
1 - First complete a radio calibration via the Inital Setup>Mandatory Hardware screen:
2 - No perform an all at once ESC calibration as shown in the video I posted in the above reply.
3 - Also verify your propellers are all connected the correct way around and not upside down, if you mount a prop the wrong way around they usualy still provide some lift, but very little compared to what it should be.
I hope that that helps, but if you complete those steps and still have the same issue with your arducopter just let me know and we can look at some more things in detail. Some photos of your quadcopter setup would also help.