feat(Vagrantfile): use "virtio" network devices by default
ref(cache): just use go. remove bash script
Merge pull request #2157 from mboersma/use-vagrant-virtio

feat(Vagrantfile): use "virtio" network devices in virtualbox
chore(builder): update Docker engine to 1.3.0
fix(controller): use docker cache
Merge pull request #2166 from mboersma/builder-docker-130

chore(builder): update Docker engine to 1.3.0
Merge pull request #2143 from aledbf/logger_just_use_go

ref(cache): just use go. remove bash script
Merge pull request #2170 from aledbf/fix_controller_docker_cache

fix(controller): use docker cache
fix(deisctl): dont print newlines for global units
ref(builder): add data container to speed same-host maintenance
ref(database): add data container to speed same-host maintenance
ref(store): use data container for quorum-friendly image updates
chore(store): add start delay on OSD recovery
fix(database): initdb if not already initialized
fix(deisctl): ignore units that dont exist on destroy
fix(deisctl): force container removal in ExecStopPort
fix(controller): use deis-logger for requires
fix(database): reset permissions before initdb
ref(deisctl): staged unit orchestration to support upgrades
fix(controller): add default retries to scheduler