Bump dependency on eventlet
Add systemd service file
crontab: don't hardcode path to colab-admin
MANIFEST.in: include files needed for packages
Add RPM spec file

Signed-off-by: Antonio Terceiro <terceiro@softwarelivre.org>
Signed-off-by: Alexandre Barbosa <alexandreab@live.com>
Merge branch 'rpm' into 'master'

Initial RPM packaging

Each commit should be reasonably self-contained. Since the RPM package in itself is just a single file, I think it's not worth to keep it in a separate branch, therefore I am including it with this MR.