Merge pull request #5 from mtgreenway/http-error-retry

Fixed two bugs and added a retry for http errors
Make deletion robust to errors.
Small startup tweaks.
Fix deletion bug.
fix typo in readme
ITS TIME.SLEEP NOT TIME.WAIT >_<
potential fix for deletion bug
actually fix deletion bug
release 0.1.0
Merge tag '0.1.0' of https://github.com/porterjamesj/novacluster into pdc
Correct deafult images and less verbose torque log
cleaned up 'tcga' key requirement for tukey