Option to provide a custom server socket factory

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk@1605335 13f79535-47bb-0310-9956-ffa450edef68
Fixed problem with HttpBenchmark ignoring #isUseExpectContinue and #isUseHttp1_0 config parameters

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk@1605336 13f79535-47bb-0310-9956-ffa450edef68
Leverage SSL utility classes

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk@1605337 13f79535-47bb-0310-9956-ffa450edef68
Added SSL server setup handler

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk@1605338 13f79535-47bb-0310-9956-ffa450edef68