[req] drop from_controller on non WebRequest object (Closes #2901079)
The `controller` concept is purely a web things. It does not belong to generic
`req` object.
The `build_url` code is slightly changed to handle that. This probably requires
extended cleanup later.
This is a barely used and very internal API. No deprecation period
if versions_map['cubicweb'][0] == (3, 7, 4):
config['http-session-time'] *= 60
config['cleanup-session-time'] *= 60
config['cleanup-anonymous-session-time'] *= 60