higher version of boto because of the need for the s.instances() function
added functionality to restart by ubuntu service (now default) since the current default (standalone binary) was not working correctly, cleaned dead imports, moved the failover code to a new script, introduced an optional continous mode
moved the failover functionality to failover-haproxy.py, since it is far from complete and contains completely different functionality
removed some dead code and added a restart function in haproxy_autoscale.py