* Adding integration tests for up
- Introduced new up cucumber test
- Fixed an issue with `System.run` where valid commands that returned non-zero exit codes were not throwing (e.g. `ls some_file_that_does_not_exist`)
- Updated README with additional instructions on how to run unit and acceptance tests
Test Plan
Verify unit tests pass
- `swift test`
Verify acceptance tests pass
- `rake features`
* Extract Up command from the project graph
* Update CHANELOG.md
* Update documentation
* Lint all up actions before running isMet and meet
* Fix up.rb formatting
* empty commit to trigger CI