Merge pull request #5 from online-labs/image-check-list

Add image check list
ignoring mounted devices
Enhanced metadata fetching and parsing
Moved nbd-add-extra-volumes to dedicated script
fixed boot with latest kernel
Moved common patches
Added htop,socat,lsof,tmux,screen,tcpdump,netcat,ioping,fio
Added locate support
Added ethstatus and dstat
Typo
Update LICENSE
Added file dependency
Added iotop
Added |, &&, ; and || support in do_in_target
Added make package
Initial version of docker based ubuntu-trusty
Fixed Dockerfile syntax
Switch ubuntu-utopic to docker-builder
Fixed Dockerfile typo
Added make release on docker-based images