Add meta-datas

[LabordePierre]

I like the idea to add meta-datas to a Pyramid Project.
For example,

• who created this project,
• when it was created,
• when it was modified,
• who work on it (we should think also about the risk/security of such information).

Maybe the meta-datas should includes the different bloc and toplo version.
It is painful to download a project an cannot be able to start it because Bloc and Toplo have evolve so much.

Originally posted by @Nyan11 in #12

[LabordePierre]

May be this mecanism shoud be enrich by a user project (for example Pyramid can add it owns tags).