Added new functionality to the pooling conn manager introduced by HTTPCORE-374
Contributed by Dmitry Potapov <potapov.d at gmail.com>

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk@1606665 13f79535-47bb-0310-9956-ffa450edef68
HTTPCLIENT-1524: RFC 2617 auth schemes (basic and digest) cannot handle auth parameters with mixed or upper case

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk@1606699 13f79535-47bb-0310-9956-ffa450edef68