Nikita Gorskikh

Instead of forwarding a request to a single fallback upstream, forward it to all available fallback upstreams in parallel, and return the first NOERROR answer. If none of the fallback...

Lest the idle timeout is skewed when system goes to sleep.

We could add an ability to filter SRV requests, e.g. for blocking TURN/STUN discovery: https://tools.ietf.org/html/rfc5389#section-9 https://tools.ietf.org/html/rfc5766#section-6

We've added some new functionality to HTML filtering rules in CoreLibs, see [discussion](https://github.com/AdguardTeam/CoreLibs/issues/94) and [updated HTML filtering rules description](https://github.com/AdguardTeam/KnowledgeBase/pull/264). The same improvements should be implemented in `tsurlfilter`. However, @ameshkov asked...

Also edit some bugs. Merge when CoreLibs 1.15 is widely available.

Merge when CoreLibs 1.14 is widespread.

Clarify some points about the `$urltransform` modifier and remove mentions of implementation details.

Merge when CoreLibs 1.16 is released.