CompileRegex - compiles various Collly filters such as URLFIlters, DomainFilters, etc.

CreateMapFromValues is used to convert a map into a PropertyMap which is JSONB in postgres.

ExtractTitleFromBody is there because I could not parse it with Colly so There's a nice regexp, it works.

SetupNewTorCLient allows us to pass custom transport, used for checking If our tor connection actually works.