Guest author
Extend blog entry
We need a "guest author" to write blog entries on someones behalf. Extend blog entry with the following attributes:
- guest author first name
- guest author last name
- guest author avatar
- guest author short desc
- guest author additional info (as input type text).
Extend existed brick "blog author"
See #10 (closed)
If guest author first and last name are set, use this properties to show author in the brick. Otherwise use original site author.