Share project

This project is intend to improve the sharing capacity for Kiwix ZIM files.

Problems
We have the following problems:
 * The mirrorbrain is on a dedicated hardware, if it dies, nothing is available anymore.
 * Mirrorbrain seems not able to deal with fallback torrent trackers.
 * Mirrorbrain metalink files do not include torrent file.
 * Assure that aria2c is really able to deal with metalink where the HTTP feed does not work anymore
 * If file is not downloadable, Kiwix can not really deal with it.
 * Kiwix is not able to detect other Kiwix instances in the same network
 * Kiwix instances should be able to share their own library file
 * Library file should be able to store the necessary to find per P2P a source without having the metalink file.
 * Kiwix can not deal correctly with ZIM files new version, and files which are removed from the library.