Fixes duplicate key error reporting
Merge pull request #145 from shadone/duplicate_key_reporting

Fixes duplicate key error reporting
-R with no argument lists all the Stacks
add help message for "-R" with no argument, and also make the print out more informative to include stack name.
Clean up argparse stuff
Fix warning in description
Fix test and corrected minor white space issue
Merge pull request #148 from ChristopherHackett/patch-1

Fix warning in description
When detecting invalid resource name print it as part of the error message
cfn script: get bucket before attempting to create it.

Also create bucket in the region where the rest of the stack in.