Comment # 13 on bug 1141444 from Jiri Slaby

Created attachment 811247 [details]
delete the allocated mem v4

With this patch, after 4 days of uptime, clementine is at ~ 360 MB, which seems
to be an improvement. It makes most of QNetworkAccessManager's static. Some of
them are made unique_ptr and some are deleted, depending on constructor.

Each thread creates its own database connection, it seems.

I can crate a PR, but it will take some time before I process it into some
upstreamable state. So feel free to take this and only note me as an author.