- pip install to a github URL without a git+ prefix fails.
- Need to close EOF heredoc when creating mirror.yaml
Change-Id: Ic555174881e9c06fede1cf731141cbe6eb0e0b02
Using a custom pypi mirror can be very convenient, making image builds
substantially faster - because we create multiple virtual
environments we benefit more than single-virtualenv users would.
Change-Id: I997daf1f9477c447e1fb30818aea9e80a49b31a6