Bug #1392859 - Prevent train brake to switch continuously from "Lap" to any release. Reducing "Running" notch state release rate. Fix a bug in calculating max brake force when corresponding cylinder pressure in .eng file was set to be lower than the allowable max cylinder pressure.
git-svn-id: http://svn.uktrainsim.com/svn/openrails/trunk@2656 a9f3cfff-6c41-7446-b0ca-052bd761e6eb