Added information about non-UTF8-charset deprecation.
Added information about non-UTF8-charset deprecation.

Included clarification as suggested by EN:
- database does not need to be restarted and is needed during the upgrade process anyway
- otrs.SetPermission.pl needs customized parameters for the different installations.

djoudi/otrs-gitimport-test,djoudi/otrs-gitimport-test,djoudi/otrs-gitimport-test