Merged revision 1619585 from tomcat/trunk:
Clear buffers as well as handler once they are no longer needed.


git-svn-id: https://svn.apache.org/repos/asf/tomcat/tc7.0.x/trunk@1625474 13f79535-47bb-0310-9956-ffa450edef68
Merged revisions 1618832, 1618833 from tomcat/trunk:
- Reduce visibility
- Rename to align with RFC 6455 terms


git-svn-id: https://svn.apache.org/repos/asf/tomcat/tc7.0.x/trunk@1625475 13f79535-47bb-0310-9956-ffa450edef68