resolve the bug of unable to delete vrrp_instance
optimize the vrrp virtual ipaddress editing form field display
fix the default vrrp virtual routes entry alignment
add vrrp track_interface parsing and gui
fixes $buffer length check to accomadate track interface like eth1 length
add vrrp virtual_ipaddress, virtual_routes, track_interface array count
> 0 check so when 0 array entry, do not print out the virtual_ipaddress
string config section
rearrange static ip and local address group to global settings
to save main menu space for virtual group and sync group configuration