README.md: Undeprecate now that we have imagefactory here too

While we kept the old create-vm-disk code, there is now 'imagefactory'
as a builtin.
lorax: Also template OS name (don't hardcode Fedora)

This way the tooling can be more easily used by downstreams.
create-vm-disk: Support writing an unconfigured-state message

See https://github.com/projectatomic/rpm-ostree/issues/31
Hoist utility functions into utils.py

Every project needs a utils.py.
Delete dead print-header code

We only have one task per file now.
Add missing includes for utimes
taskrunner: Simple process runner with versioned logging

This is like the task bits from Continuous, but this one is in Python
since we're trying to migrate this module.
packaging: Add deps for lorax/imagefactory

Since we imported the code from fedora-atomic.
create-vm-disk: The first partition offset should be 2048

This matches the Anaconda default, and should fix an issue where
growpart was triggering corruption.
create-vm-disk: Set the partition type for LVM

Should be 8e.  This normally doesn't matter, but let's be clean.