Fixing the fab uninstall_contrail task not to  remove debs_list.txt, rpm_list.txt file from /etc/contrail in case of partial uninstall Closes-Bug:1484788
Fixing the fab uninstall_contrail task not to  remove debs_list.txt, rpm_list.txt
file from /etc/contrail in case of partial uninstall
Closes-Bug:1484788

Change-Id: Ib4edb8f1a9aac6dcae9f9c91ca1715de38164712

Juniper/contrail-fabric-utils,Juniper/contrail-fabric-utils