Fix generate stackbrew for onbuild commit ids
Merge pull request #9 from infosiftr/onbuild-commits

Fix generate stackbrew for onbuild commit ids
Replace `apt-get purge && apt-get autoremove` with `apt-get purge --auto-remove`
Add upstream license (BSD 2-clause)
Merge pull request #11 from infosiftr/license

Add upstream license (BSD 2-clause)