Merge pull request moby#33339 from cpuguy83/bump_17.03.2

[17.03] Bump 17.03.2

bump to GA

Signed-off-by: Victor Vieux <victorvieux@gmail.com>

bump to rc3

Signed-off-by: Victor Vieux <victorvieux@gmail.com>

bump to rc2

Signed-off-by: Victor Vieux <victorvieux@gmail.com>

bump to 17.05.0-rc1

Signed-off-by: Victor Vieux <victorvieux@gmail.com>

bump to 17.04.0 GA

Signed-off-by: Victor Vieux <victorvieux@gmail.com>

bump to rc2

Signed-off-by: Victor Vieux <victorvieux@gmail.com>

bump version to 17.03.1

Signed-off-by: Victor Vieux <victorvieux@gmail.com>

Merge pull request moby#31853 from mlaventure/update-containerd-17.04

[17.04] Update containerd to version 422e31ce907fd9c3833a38d7b8fdd023e5a76e73