By avoiding the loopback device, we do not need root priviledges to create an
image. We give mkfs.ext3 an offset and image size.

According to the man page of waitpid, you can only call WEXITSTATUS
after you have checked WIFEXITED.

* origin/lib-refactor:
  Added copy ability to run as non-root
  Added src/copy to gitignore
  Added copy functionality
  Adding debugging when forking
  Adding more tests
  Add create final mount directory when overlayfs is not enabled
  Support multiple allowed container owners (list)
  Return if binary is running suid (enabled?)
  Add ability to limit containers that can run according to owner
  Removed unused privleged mode code (for now...)
  Minor fix to make sure that singularity.conf is always updated
  Add selftest abilities... needs to be expanded upon
  Include MS_NODEV in image mount
  Merge contributing clause back into license as it should be

* origin/lib-refactor: (125 commits)
  Minor changes for apptainer#508
  Fix tests to match ordering
  Fix double dots
  Implement read-only bind mounts to close apptainer#451
  Fixing the API for the changes I made. ooopsie.
  Add support for %environment (apptainer#504)
  Minor environment file updates!
  remove tmpfile
  Don't do recursive chmod here
  Fix permissions to remove files properly
  re-add chmod to make things writable again
  fix import to properly error out
  we should not call add for user import, all calls go to import.py
  removing script that doesn't exist anymore
  updating docker/python functions to not need ADD
  Fix import.exec for new python interface
  Updates for new python interface
  tweaking variable name to SINGULARITY_CONTENTS instead of layerfile
  Updates for newest python API
  adding new python files
  ...

Currently `singularity -d export image.iso > image.tar` will not work
as `-d` makes singularity print to stdout

* origin/development: (67 commits)
  Clean environment when using -C/--containall flags
  Add -e/--cleanenv runtime action option (ref: apptainer#445)
  Moved test
  Cleaned up tests and added more docker tests
  Fix shell debug/verbose messages to goto STDERR (ref apptainer#481)
  fix: removed tabs
  fix: removed driver if
  added test
  fix syntax
  Testing a wider print format
  Minor fix for CI
  Clean redundant messages of label additions
  Support optional tests
  Make container writable for removal test
  Added config ownership test
  Fix comments and empty lines in the %file sections (and add tests)
  Finishing up the new test code
  Fixes for runscript and environment overriding what is in the sections and python
  Test updates... WIP
  Fix %labels parsing during bootstrap
  ...