db/storage: using Dial without timeout to connect with mongo

This is due to a change on the timeout handling of mgo driver, see
release notes http://blog.labix.org/2013/09/05/mgo-r2013-09-04-released
for more.
provision/docker/stubs_test.go: updating ports value on ListContainers json return mock

This is due to docker API change, see
http://docs.docker.io/en/latest/api/docker_remote_api_v1.5/#list-containers
for more information