The dokuwiki configuration file was misplaced and the playbook
couldn't find it when creating a new istance of the wiki.

With the transition to the new ninux-compatible network we choose to
have a ip pool for vm that resides on the 10.150.42 network.
As 254 unique addresses are sufficient for our need we reduce the subnet
to a /24

This commit includes the configuration of vlans on the host
for virtual machines. By configuring a bridge on the br0 interface
we can host the virtual machine vlan and by setting a vlan on the
logical device we can include it into the management vlan.
All variables are included from playbook