WP_HTTP: Improve WP_HTTP::chunkTransferDecode() to properly handle binary data and chunked responses which include data in the page that looks like a chunked response.
This also fixes a case where the gzip'd data would become corrupt after chunked decoding as \r\n was replaced with \n in the data stream. Fixes #23463 


git-svn-id: https://develop.svn.wordpress.org/trunk@25153 602fd350-edb4-49c9-b593-d223f7449a82
WP_HTTP: Update the documentation regarding HTTP/1.1 support. Props leewillis77 Fixes #25074


git-svn-id: https://develop.svn.wordpress.org/trunk@25154 602fd350-edb4-49c9-b593-d223f7449a82