Fix#5103. By default, Httpclient will encode the URI but
we don't necessarily want that. These modules originally
didn't use URI encoding when they were written so we should
just keep them that way.
See the complaint on #4039. This doesn't fix that particular
issue (it's somewhat unrelated), but does solve around
a file parsing problem reported by @void-in
The HttpClient mixin has a peer() method, therefore these modules
should not have to make their own. Also new module writers won't
repeat the same old code again.
HD Moore