Added Wercker-CI configuration (+7 squashed commits)
Squashed commits:
[9d3ac41] WIP
[8676f0c] standard configuration
[4409654] Build images
[e4d22f6] Fixed standard worker for docker
[8614002] Added commands to build images
[38d3b7d] Added command to generate build script
[cca7a68] Added command to provision custom server. Make images docker compatible.