Merge pull request #21 from dlcs/feature/jp2_only

initial commit adding ability to only generate a jp2

Merge pull request #20 from dlcs/logging_improvements

improving logging

Merge pull request #15 from dlcs/feature/handle_imagemodes

Handle alternative image_modes

Merge pull request #11 from dlcs/feature/timeout

Add HTTP_TIMEOUT envvar, which can be used to alter uwsgi http-timeout

Merge pull request #10 from dlcs/feature/gh_action

Add githubaction to build image