PyPI installation detail added to README.
Docs version updated.
Docs version updated.
Bug fix and new concoord version.
Graceexit bug fixed.
New local tests are added.
Updated PINGing mechanism. A node pings another node if it did not hear from it more than LIVENESSTIMEOUT and nodes are taken out of the configuration accordingly.
Clean up.
All tests are updated and working.
Added check for iptables