Do limited clients need special guidance?

[tfpauly]

From #259, there was a section I wanted to not add immediately but discuss more first:

Note that clients with limited resources MAY not be able to process and utilize all
entries of an excessively long list. In the case if the provided list is too long for a given
client, it SHOULD process as many records from the beginning of matchDomains, matchSubnets and
matchPorts lists. These lists SHOULD be sorted with the most important elements placed at
the start of the list. If a client cannot consume all the entries in excludedDomains or
excludedIPs it SHOULD NOT use given proxy configuration to avoid sending traffic that the proxy
cannot process.