if $database->app_uuid is not set it would use '' in some conditions
which isset would test true.
This fix uses strlen instead, but also fixes number_transations app that
highlighted the flaw
* NewApp - number_translation
allows management of mod_translate profiles
automatically importing existing configuration on app_defaults where the configuration file is not marked as autogenerated.
import from separate files for presets
* Russian translations for number_translation
* German, Austrian and Swiss translations for number_translation
