Where are the Blender program files in Ubuntu 14.04? Can anyone tell me where the .blender directory is in Ubuntu 14.04?

I cannot find the .blender directory in my Ubuntu 14.04 system.

I need to know this location so I can put the MakeHuman add on sub-directories there.
By default: see the doc about directory layout

# LOCAL
./2.74/

# USER
$HOME/.config/blender/2.74/

# SYSTEM
/usr/share/blender/2.74/