When I initially pulled the BYTERANGE filter into the core, Greg Stein

told me I was wrong.  I was wrong, and Greg was right.  This commit
just moves the byterange filter and its related functions out of the core,
and puts them back in the HTTP specific module.
Submitted by:	Greg Stein


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@88815 13f79535-47bb-0310-9956-ffa450edef68