fix MariaDb version number display to contain the full version, e.g. "5.5.5-10.1.0", close WPN-XM/WPN-XM#299
fix MariaDb version number display to contain the full version, e.g. "5.5.5-10.1.0", close WPN-XM/WPN-XM#299

WPN-XM/webinterface,WPN-XM/webinterface