don't fail if there's no ipaddress in the output
Merge pull request #580 from wmatyskiewicz/master

APi
added extracost api
typo
Merge pull request #581 from wmatyskiewicz/api

added extracost api
export extracost
extracost.venture.name
Merge pull request #582 from wmatyskiewicz/api

export extracost
Release 1.2.4
fix xen disk discovery
fix if empty tag
make scherch list as uniq
added model proc E5-2630 core counts
treat unknown as None
display model instead of model group
Disable deployment plugin reboot
Merge branch 'master' of github.com:allegro/ralph
Merge pull request #583 from wmatyskiewicz/bugs

Bugs
Merge pull request #584 from deshipu/master

fix xen disk discovery
DonPedro bugfix - 'ipaddress' KeyError iterate through ethernets