update Godep commit hashes for docker 1.2.0; removed nsinit from service...

...d; fix ParseRepositoryTag


*    update godeps with commit hash from https://github.com/docker/docker/tree/v1.2.0 docker/docker@fa7b24f#diff-d41d8cd98f00b204e9800998ecf8427e
*    remove nsinit
*    fix ParseRepositoryTag