Update memory limit for container

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Benchmark for jsonlog.WriteLog

Signed-off-by: Alexandr Morozov <lk4d4@docker.com>
Test for jsonlog.WriteLog

Signed-off-by: Alexandr Morozov <lk4d4@docker.com>
Merge pull request #8182 from LK4D4/logjson_benchmark

pkg/logjson benchmark and test
Merge pull request #8173 from crosbymichael/update-mem-limit

Update memory limit for container
Replace utils.CheckLocalDns with bytes.Contains line

Since RemoveLocalDns patch will  remove all localhost entries
from resolv.conf we no longer need anything more then
!bytes.Contains(resolvConf, []byte("nameserver")

To check for no nameserver entry in dns config.

Docker-DCO-1.1-Signed-off-by: Dan Walsh <dwalsh@redhat.com> (github: rhatdan)
Merge branch 'master' of github.com:dotcloud/docker into RemoveLocalDns

Docker-DCO-1.1-Signed-off-by: Dan Walsh <dwalsh@redhat.com> (github: rhatdan)