Clarify: log in where?
Figuring out what's going on here.
The location of the repo itself is redundant.
Style.
Caveat about the install-packer script.
Merge branch 'master' into nonpublic_workaround

Conflicts:
	README.md
Build from the tarball rather than the clone, to avoid releasing the
clone (since it's not public right now).
More text explaining what to expect.
Friendlier error message.
Set up for cloning via ssh if desired.
Right.  Should check out the release branch when releasing.
Better title.