Fixed broken hostname verififcation

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpasyncclient/trunk@1631167 13f79535-47bb-0310-9956-ffa450edef68
Fixed potential race condition in case of abnormal termination of pipelined message exchange (request producers / response consumers may be not fully closed out)

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpasyncclient/trunk@1631168 13f79535-47bb-0310-9956-ffa450edef68
Updated release notes for HttpAsyncClient 4.1-beta1 release

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpasyncclient/trunk@1631181 13f79535-47bb-0310-9956-ffa450edef68
Added examples of pipelined request execution

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpasyncclient/trunk@1631187 13f79535-47bb-0310-9956-ffa450edef68
Added RAT plugin; removed .pmd file; updated reference to JRE Javadocs

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpasyncclient/trunk@1631188 13f79535-47bb-0310-9956-ffa450edef68
Update Apache Commons Logging version from 1.1.3 to 1.2.

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpasyncclient/trunk@1631266 13f79535-47bb-0310-9956-ffa450edef68