Define a default set of "LicenseType" provided with a fresh installation

Django Admin should provide a default set of license types.

License types are used for audio files and photos.

Suggestions are:

• All variations of Creative Commons licenses
• Public Domain
• All rights reserved
• ...

Note, the given name is only used for administrative purposes, or as a fallback. The actual names could be provided client-site (Dashboard, Website) only and translated different languages using i18n, where applicable.

I suggest the Namespace the type field, similar as in Define a default set of "LinkType" provided wit... (#150 - closed)