Matterbridge v0.9.2

Bugfix

• general: make ignorenicks work again #115
• telegram: fix receiving from channels and groups #112
• telegram: use html for username
• telegram: use unknown as username when username is not visible.
• irc: update vendor (fixes some crashes) #117
• xmpp: fix tls by setting ServerName #114

New features

• slack: support private channels #118