- Update docker to 1.12.1 (bsc#996015)
see changelog in https://github.com/docker/docker/releases/tag/v1.12.1

- Add asaurin@suse.com's test.sh test script.
- Add integration test binary in docker.spec file. This is work done by
asaurin@suse.com.

- Package docker-proxy (which was split out of the docker binary in 1.12).
boo#995620

- fix bsc#995102 - Docker "migrator" prevents installing "docker",
if docker 1.9 was installed before but there were no images

- Update docker.service file with several changes.
* Reapply fix for bsc#983015 (Limit*=infinity).
* Specify an "OCI" runtime for our runc package explicitly. bsc#978260

- remove disable-pprof-trace.patch: We can remove this patch because
we use go 1.6, either gcc6-go or gc-go. This patch was for gcc5-go

- add go_arches in project configuration: this way, we can use the
same spec file but decide in the project configuration if to
use gc-go or gcc-go for some archs.

- use gcc6-go instead of gcc5-go (bsc#988408)
- build ppc64le with gc-go because this version builds with gc-go 1.6
- remove bnc964673-boltdb-metadata-recovery.patch because it has already
been merged

- update to v1.12.0 (bsc#995058)