Make sure the  container is well started prior to perform the test
Wait for the container to finish in TestAttachDisconnect before destroying it
Improve TestMultipleAttachRestart to avoid unnecessary warning
Remove unecessary memeory limit within tests
Add -r flag to dockerd in order to restart previously running container. Fixes #26
Merge pull request #467 from dotcloud/improve_localhost_port_test

* tests: Improve unit test to avoid unnecessary warnigns
Merge pull request #473 from dotcloud/26-auto_restart_containers-feature

+ runtime: Add -r flag to dockerd in order to restart previously running container....