Disable "Spring Effect" when scrolling over the maximum limit
In the past, it was possible to disable the so-called rubber band effect by using this little command in terminal:

defaults write -g NSScrollViewRubberbanding -int 0


To revert the changes you used:

defaults delete -g NSScrollViewRubberbanding


You need to restart the apps to see the changes (or reboot the whole system).

Alas, I am no longer sure if it works. I tried it on Yosemite, but it seems to be obsolete now. Worth giving a shot, though!