* set default HOME env properly
* set HOME to / if user is set by uid
* fix test
* continue to skip user_run test
* fix unit test to match new functionality
* adding metadata tests back to integration tests and fixing resulting bugs
* fix onbuild and default env
* removing old test files
* adding the ArgsEscaped boolean on CMD commands
* fix onbuild test
* ignore failing test until container-diff is fixed
* code comments
* adding todo to remove uncomment failing test