Prior to this patch, the response of
- GET /images/json
- GET /containers/json
- GET /images/(name)/history
display the Created Time as UNIX format which doesn't make sense.
These should be more readable as CLI command `docker inspect` shows.
Due to the case that an older client with a newer version daemon, we
need the version check for now.
Signed-off-by: Hu Keping <hukeping@huawei.com>
945fc9d882