The byte-ranges filter. This looks like it should work, but the

The byte-ranges filter.  This looks like it should work, but the
Acrobat plug-in doesn't like it for some reason.  This does work better
than what we currently have, because at least it returns all of the
requested data.  This basically removes all BUFFs from the byte-range
code and removes all of the byte-range code from the default-handler.

Byte-ranges are now handled by a filter, which makes sense, and it allows
us to handle byte-ranges for all requests, not just files.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@86864 13f79535-47bb-0310-9956-ffa450edef68