increase log rate and allow for longer sleep. 

in ideal case 10k lines of output can now be send before install phase stops. (e.g. to deal with
yum failures in post)
These sleeps are in seconds, right? They would seem to add nearly an additional minute to the install time. Obviously having debug is good but we have some groups very keen to have the install as quick as possible and the amount of sleeping is beginning to add up. What do other people feel about this?