Reduced the parallel key concurrency to 5
Fixed the typo
Merge pull request #149 from Kroisse/fix-typo

Fixed the typo
Moved config to the config/ directory (closes #144)
Added support for environment variable default value
Added exmaple for persistent storage to the readme.
Fixed pep8 warning
Merge pull request #151 from theopolis/edit_readme

Added exmaple for persistent storage to the readme.
Merge pull request #150 from dotcloud/environ-default

Added support for environment variable default value