Added PaddedShortUUID for constant length short uuid strings
Added tox config for local environment testing.

Signed-off-by: Kevin Stone <kevinastone@gmail.com>
Added consistency test.

Signed-off-by: Kevin Stone <kevinastone@gmail.com>
Fix endian-ness of the padded short uuid.

Signed-off-by: Kevin Stone <kevinastone@gmail.com>
Merged Padding enhancements into the ShortUUID class.

Signed-off-by: Kevin Stone <kevinastone@gmail.com>
Merge pull request #15 from kevinastone/develop

Added PaddedShortUUID for constant length short uuid strings