[webant] make conf parameter optional
[webant] make conf parameter optional

leophys/libreant,ael-code/libreant,leophys/libreant,insomnia-lab/libreant,ael-code/libreant,leophys/libreant,ael-code/libreant,insomnia-lab/libreant,insomnia-lab/libreant,ael-code/libreant,insomnia-lab/libreant,leophys/libreant