Ignore events from contact
Problem
Some users who have bots as contacts don't want to see when the bot is signing in or signing out:
For example:
A support bot of [einfach Jabber http://einfachjabber.de/] support@einfachjabber.de
A support bot of JabMe sysbot@jabme.de
A search engine bot of DuckDuckGo im@ddg.gg
Analysis
None.
Enhancement recommendation
Add an option to ignore events from a selected contact