dteviot authored Mar 15, 2015 and cc9cii committed Oct 05, 2018

Note, I suspect Rng::rollClosedProbability() is not needed.  The only difference between it and rollProbability() is that one time in 37k (on Windows), it will give an output of 1.0.
On some versions of Linux, the value of 1.0 will occur about 1 time in 4 billion.

(cherry picked from commit 3f28634d)

# Conflicts:
#	apps/openmw/mwclass/creature.cpp
#	apps/openmw/mwclass/npc.cpp
#	apps/openmw/mwgui/pickpocketitemmodel.cpp
#	apps/openmw/mwgui/waitdialog.cpp
#	apps/openmw/mwmechanics/combat.cpp
#	apps/openmw/mwmechanics/mechanicsmanagerimp.cpp
#	components/CMakeLists.txt
#	libs/openengine/misc/rng.cpp