fix : trad error

Preivous one was using encoding, but this create data to not be stored
correctly into database. Old method is still available by adding
'_encoded' at end of toolbar name.

Fix Cron module date et [ task #710 ] Envoi de mail 

develop

Merge Cron module

fix error translation

- Because cron is a module, constant must start with CRON_.
- Miscellanous fixes.
- For external link to run jobs from url, we must forge url using conf
file and not autodetect url.

by odt template engine (to be compatible with all countries precision).

password (password display in clear...)!