Production: allow database file to be set via environment variable
Production: allow database file to be set via environment variable

Signed-off-by: Lucas Dutra Nunes <ef3bc18e35a3950cf2e325af017aeee64426bbfa@ossystems.com.br>

OSSystems/OSPhoneBook,OSSystems/OSPhoneBook,OSSystems/OSPhoneBook,OSSystems/OSPhoneBook