When chat with offline friend don't notify (and don't sound) about him being offline

I have setting that I always hear sound when friend IM me

I sometimes get messages from offline friends and I response to them When I do response I'm getting message User is not online bla bla bla with notification and sound It's annoying to me personally because I react like "wow, someone messaged me" but it's just system message.

Works well. I like it.

requested review from @rye and @XenHat

removed review request for @XenHat

approved this merge request

added 3 commits

• 9308e232...244bc52d - 2 commits from branch alchemy:master
• db797986 - when chat with offline friend don't notify (and don't sound) about him being offline

Compare with previous version

merged

mentioned in commit b0d68a8a