PHP notices

Hi @pigeonhut,

I just wanted to let you know that the plugin throws a lot of notices in the admin area. It started upon activating the plugin. These were the ones:

– Notice when a session already started.
Fix: wrapping session_start around this:
if (session_status() == PHP_SESSION_NONE) session_start();

– Notices of undefined variables in lib/MessengerBot/Mod.php for various lines. Example line 14.
Fix: use isset() to check if variable is set.

– Various notices of an undefined index in the admin settings page. See screenshot: https://snag.gy/lmncUk.jpg

It’s not a big deal, but for those of us who develop in debug mode, this could be annoying ??