PoWA collector daemon for remote snapshots

 This repository contains the powa-collector tool, a simple multi-threaded
 python program that performs the snapshots for all the remote servers
 configured in a powa repository database (in the powa_servers table).
 .
 Related packages:
  * powa-web: web frontend
  * postgresql-powa (postgresql-NN-powa): archivist collecting statistics