clarify LICENSE
clarify LICENSE

make clear the viral nature does not extend to other network services
edx/xserver,Marx86/xserver,EDUlib/xserver,EDUlib/xserver,edx/xserver,EDUlib/xserver,Marx86/xserver,EDUlib/xserver,Marx86/xserver,Marx86/xserver,edx/xserver,Marx86/xserver,edx/xserver,EDUlib/xserver,edx/xserver