When access is denied, also provide when possible and wanted, the needed
permissions so that in the future, user will be able to ask for
permission easily.
Renamed previous user handlers as admin user handlers.
Added non admin user handler /user/{uid} .
Add new `send_...` response to `CMS_API.response_api`, and use them
instead of `create {...RESPONSE}.... ; execute`.
Fixed potential issue with storage mailer initialization if folder does
not exist.
Added utf_8_encoded helpers function on CMS_API interface.
Fixed a few unicode potential issues.
Removed a few obsolete calls.
- it allows to login as a given user by passing security check.
- it must be used only during development!
- disabled by default!
Updated the session auth module to make it easier to be reused.
- masquerade module is based on the session auth module.
