chore(registry): bump version

In preparation for making an upstream PR, I rebased it against
upstream's master.
Merge pull request #1397 from deis/bump-registry

chore(registry): bump version
fix(logger): add back message tag

without the tag, the first word from the logs was missing.

Without this change:

    2014-07-23 16:29:05 oblong-duckling[worker.1]:  world

with this change:

    2014-07-23 16:38:19 oblong-duckling[worker.1]: hello world
fix(client): print default string

When version is not specified in the arguments, you'd get a response:

    $ deis rollback
    Rolling back to vNone...

This makes it print a default string if no version is specified.
Merge pull request #1398 from deis/fixup-rollback

fix(client): print default string
Merge pull request #1402 from deis/fix-logger-output

fix(logger): add back message tag
chore(CHANGELOG.md): update for v0.10.0
chore(docs): update CLI versions and download links
chore(release): switch master to v0.11.0
Merge branch 'master' of https://github.com/deis/deis