CLOUDSTACK-38333.0.6 to ASF 4.2 Upgrade: "cloud" Database Schema Inconsistencies on the Upgraded Setup - Tables "baremetal_dhcp_devices" and "baremetal_pxe_devices"

CloudStack CLOUDSTACK-3612
3.0.6 to ASF 4.2 Upgrade: Database Schema Inconsistencies on the Upgraded Setup
Fix for CLOUDSTACK-3858, 2.2.14 does not contions symbolic link to create sever.xml, we need to check both file or symbolic link exist or not in save folder
CLOUDSTACK-3495
        CS used to access vnc server in xenserver dom0 to get VM console, now CS moves to use XenServer console API. getvncport plugin is not needed any more.
        remove the code related to getvncport in XenServer
CLOUDSTACK-4134: UI > Infrastructure > zone > physical network > guest > edit action - pass vlan parameter to updatePhysicalNetwork API no matter vlan field is blank or not.