Added apache-rat maven plugin

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk@1626736 13f79535-47bb-0310-9956-ffa450edef68
Updated Java API documentation reference

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk@1626737 13f79535-47bb-0310-9956-ffa450edef68
Fixed javadoc warning

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk@1626738 13f79535-47bb-0310-9956-ffa450edef68
Updated HttpClient 4.4-beta1 release notes

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk@1626740 13f79535-47bb-0310-9956-ffa450edef68
Use non-zero connect timeout as SSL handshake handshake (socket) timeout if not explicitly set by the caller (socket timeout is zero)

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk@1626782 13f79535-47bb-0310-9956-ffa450edef68