Merge pull request #64 from vishh/runin

Adding RunIn to run a user specified command in an existing container.
Update dockerfile for running tests
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@docker.com> (github: crosbymichael)
Add makefile with build and test targets
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@docker.com> (github: crosbymichael)
Add start of netlink unit tests
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@docker.com> (github: crosbymichael)
Add code coverage to the tests
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@docker.com> (github: crosbymichael)
Update travis to test specific packages

Add another netlink test and remove the -v from the dockerfile test
output
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@docker.com> (github: crosbymichael)
Use short flag for identifying integration tests
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@docker.com> (github: crosbymichael)
Merge pull request #117 from crosbymichael/add-integration-tests

Add integration tests with nice makefile
Merge pull request #119 from vishh/fix_network_stats

Minor fixes to network stats
Fix veth network stats. Tx on the host vETH is ingress traffic and not egress.

Docker-DCO-1.1-Signed-off-by: Vishnu Kannan <vishnuk@google.com> (github: vishh)