Fixed OSGi metadata

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpasyncclient/trunk@1463889 13f79535-47bb-0310-9956-ffa450edef68
Use buffer size and fragment size hint parameters from ConnectionConfig

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpasyncclient/trunk@1463895 13f79535-47bb-0310-9956-ffa450edef68