[integration-test] add share volumes and nil hostconfig tests

[bergwolf]

Merge master and add new test cases.

[2017-01-21 08:52:18] github.com/hyperhq/hypercli/integration-cli.(*DockerSuite).TestContainerApiStartNilHostconfig - 1.657927 sec
[2017-01-21 08:52:24] github.com/hyperhq/hypercli/integration-cli.(*DockerSuite).TestShareImplicitVolume - 91.499958 sec
[2017-01-21 08:54:08] github.com/hyperhq/hypercli/integration-cli.(*DockerSuite).TestShareNamedVolume - 103.007350 sec
[2017-01-21 08:56:04] github.com/hyperhq/hypercli/integration-cli.(*DockerSuite).TestShareNoVolume - 91.647231 sec
[2017-01-21 08:57:49] github.com/hyperhq/hypercli/integration-cli.(*DockerSuite).TestSharePopulatedVolume - 113.408781 sec
[2017-01-21 08:59:56] github.com/hyperhq/hypercli/integration-cli.(*DockerSuite).TestShareVolumeBadSource - 11.760751 sec
[2017-01-21 09:00:14] github.com/hyperhq/hypercli/integration-cli.(*DockerSuite).TestShareVolumeNoSource - 3.539766 sec
OK: 7 passed
PASS

[Jimmy-Xu]

merged by manuall in commit 5de2f94