Add some classifiers to better describe the project
Add some classifiers to better describe the project

Change-Id: Ic892958b25c6190e059c0ebd858634050daccd3b

JonasPf/ospurge,openstack/ospurge,stackforge/ospurge,tnahak/ospurge,DigitalPacific/ospurge,remoteur/ospurge,openstack/ospurge