Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=51655

Added a decent description of what tcnative actually is.



git-svn-id: https://svn.apache.org/repos/asf/tomcat/native/branches/1.1.x@1507114 13f79535-47bb-0310-9956-ffa450edef68
Added missing blame-list.


git-svn-id: https://svn.apache.org/repos/asf/tomcat/native/branches/1.1.x@1507115 13f79535-47bb-0310-9956-ffa450edef68