jogo/DevstackUp — pull request #4 by steven-collins-omega (2014-04-03 14:50:27+00:00)
Title: Use global-requirements.txt in install-packages.sh, if available.

Recent revisions of the `requirements` git repo no longer have a `requirements.txt` file, so the `pip install` command fails. Use `global-requirements.txt` instead if that file exists, else fall back to the old behavior.