[release] pkgdb2 1.20.1

[Pierre-Yves Chibon]

Hi all,

I just pushed to staging the version 1.20.1 of pkgdb2, here is the changelog:

* Sun Oct 05 2014 Pierre-Yves Chibon <pingou at pingoured.fr> - 1.20.1-1
- Update to 1.20.1
- Better email handler for the logs
- Re-write update_package_info cron script using yum's metadata instead of
  pkgwat

Since most of the changes are backend stuff and don't touch the user space, I'll
try to do some testing this afternoon and push to prod today or tomorrow.

Have a nice day,
Pierre