* add pool configs
* add pool interface from proxy branch
* add support for pool initialisation in plugin
* add pool to telnet
* backend pool as service
* move libvirt backend to own dir
* add NAT settings
* add guest backend config
* check for telnet in nmap if ssh is disabled
* add pool periodic cleanup
* add developer guide for backend pool
* add proxy documentation
* add backend pool docs
* docs on XML configs
* add method to check guest connectivity
* add telnet exec class
* update circle deps
* add tox libvirt dep
Guilherme Borges