* Add option to run pre commands on arbitrary container
* Correctly handle quoted args in commands
* Provide defaults for test version arg
* Allow filtering of target containers
* Add documentation on exec commands
* Use mysqldump in exec test
* Add mysqldump section to recipes
* Also run commands test in swarm mode
* Use name instead of id
* Add syntax highlighting
* Add missing license headers
* Update targz library to include potential ownership fix
* Move archive logic to main repo
* Remove assertions for debugging
* Use relative path in assertion
* Strip local part from archive location
* Log when extracting in tests
* Fix trimming of prfix
* Add license info to archive.go file
* Undo change in test assertion
* Add test checking for preserved file ownership
* use same postgres version in tests
* Wrap errors when archiving, handle deletion at script layer
