Ensure write errors when using HTTP Upgrade with the APR/native connector result in IOExceptions rather than errors being silently swallowed.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/tc7.0.x/trunk@1471614 13f79535-47bb-0310-9956-ffa450edef68
Outbound errors need to trigger an onClose event on the inbound side

git-svn-id: https://svn.apache.org/repos/asf/tomcat/tc7.0.x/trunk@1471619 13f79535-47bb-0310-9956-ffa450edef68
Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=54791
Restore tools.jar entry in jarsToSkip

git-svn-id: https://svn.apache.org/repos/asf/tomcat/tc7.0.x/trunk@1471633 13f79535-47bb-0310-9956-ffa450edef68