The files in `container/` no longer make sense to have that name since
the "document to pixels" part will run in Qubes OS in its own virtual
machine.
To adapt to this, this PR does the following:
- Moves all the files in `container` to `dangerzone/conversion`
- Splits the old `container/dangerzone.py` into its two components
`dangerzone/conversion/{doc_to_pixels,pixels_to_pdf}.py` with a
`common.py` file for shared functions
- Moves the Dockerfile to the project root and adapts it to the new
container code location
- Updates the CircleCI config to properly cache Docker images.
- Updates our install scripts to properly build Docker images.
- Adds the new conversion module to the container image, so that it can
be imported as a package.
- Adapts the container isolation provider to use the new way of calling
the code.
NOTE: We have made zero changes to the conversion code in this commit,
except for necessary imports in order to factor out some common parts.
Any changes necessary for Qubes integration follow in the subsequent
commits.
Update several references to First Look Media in the code, to better
reflect the current status, where Freedom of the Press Foundation has
taken over the stewardship of the project.
Fixes#343
While creating a Debian package for Dangerzone, we found out that the
`dangerzone.isolation_provider` submodule was not copied to the final
package. Turns out that it was missing from the packages list that we
define in `setup.py`.
Include this package in the proper section in `setup.py`.
Replace references to github.com/firstlookmedia with
github.com/freedomofpress, since the ownership of these repos has been
transferred to the Freedom of the Press Foundation.
