Remove the boto timeout set (doesn't work anyway) and add some better logging to the scheduler

buildman/manager/ephemeral.py

@@ -46,10 +46,6 @@ class EphemeralBuilderManager(BaseManager):
   _etcd_client_klass = etcd.Client
 
   def __init__(self, *args, **kwargs):
-    # Set a timeout so that boto connections don't hang indefinitely.
-    boto.config.add_section('Boto')
-    boto.config.set('Boto', 'http_socket_timeout', '10')
-
     self._shutting_down = False
 
     self._manager_config = None