[repoapi, cwconfig] give a convenience method to get a repository from a config
This is a very common need.
The private repoapi._get_inmemory_repo becomes config.repository(...)
Document: cubicweb-doc
Title: CubicWeb documentation
Author: Logilab
Abstract: Some base documentation for CubicWeb users and developpers
Section: Apps/Programming
Format: HTML
Index: /usr/share/doc/cubicweb-documentation/index.html
Files: /usr/share/doc/cubicweb-documentation/*.html