M-Lab: rm deploy.sh ls.py: they are now in neubot_mlab repos
M-Lab/post_deploy.py: also this file was moved to another repos
Move master-server related scripts from M-Lab to MasterSrv

This commit does not touch the content of the scripts, for
additional clarity. I will do that in next commits.
M-Lab: update copyright and more small changes [to be fixed up]
MasterSrv: make sure recently-moved scripts work again
MasterSrv/ip_addr.dat: update
MasterSrv/servers.py: minor changes

Don't use asyncore for printing the exception; use logging.error
exc_info feature instead.

Tweak some comments and dispose of some blank lines.

Make sure we sort hosts: it is annoying to do that manually.
MasterSrv: update the list of servers