* disabled StrictHostKeyChecking during ssh key validation
* adds support to (ssh cloned) github repositories on key validation
* update Changelog and config.json
* Add user/password support to git pull.
This can be used for private repositories that don't support ssh.
Ex: https://cloud.google.com/source-repositories/docs/
* Remove unnecessary err redirection.
* Bump git_pull version to 3.1
* Update config.json
* Update CHANGELOG.md
* Update CHANGELOG.md
* address commands
* new implementation for git pull
* implemented review comments: use absolute paths
* fixed linting errors and warnings
* fixed spellcheck hints, and ignored one of them
* Update config.json
* Create CHANGELOG.md
* Update Dockerfile
* Create build.json
* add new cli