make s3 bundle names uniq to prevent parallel aminations colliding on the s3 files names (very hard to debug)
fix pylint warning
make verbose log filename unique (in case there are multiple builds for same package simultaneously)
Merge branch 'testing' of github.com:Netflix/aminator into testing
fix location for manifest in s3 to match the unique name we uploaded
fix bogus format
Merge pull request #182 from coryb/testing

make s3 image names unique in case simultaneous bakes with same package occur.