continue to test cfs if rt is not enabled in kernel
Install vconfig in VM for VLAN example

This should help with #393 although it doesn't solve
the root issue of the example failing silently when
vconfig is missing.
Merge pull request #394 from cdburkard/patches/cpu_test

continue to test cfs if rt is not enabled in kernel
remove User Switch from linearBandwidth due to poor performance
add 1ms delay to all links to exaggerate TCP bandwidth decrease across an increasing number of links