redis is too chatty in the task logs
[aws_cpi] give a better error when we lack an AMI
[director] retry vm creation on error if the cpi says it is retryable
[aws_cpi] wait a more reasonable amount of for AWS operations to complete
[director] only retry vm creation a limited number of times
[director] make redis log level configurable
Merge pull request #121 from pmenglund/solo

weekend solo work