add flag norollback to be used by shutdown
Merge pull request #67 from lnussel/master

add flag norollback to be used by shutdown
Merge pull request #68 from os-autoinst/coolo_vnc

copy Net::VNC into our source to patch it to be qemu specific
don't crash if there are no vars.json in directory
offer a function to create a blank image
capture the VNC screen when doing a screenshot - for debugging
implement 2 functions needed to update raw data from vnc
use vnc only to grab the screenshot