Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=56529
Fixed NoSuchElementException while handling attributes with empty string value in custom tags. Patch provided by Hariprasad Manchi.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1595171 13f79535-47bb-0310-9956-ffa450edef68
Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=56529
Test case for attributes with empty string values in custom tags.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1595230 13f79535-47bb-0310-9956-ffa450edef68
Update changelog

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1595246 13f79535-47bb-0310-9956-ffa450edef68
Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=56536
Ensure that HttpSessionBindingListener.valueUnbound() uses the correct class loader when the <code>SingleSignOn</code> valve is used.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1595285 13f79535-47bb-0310-9956-ffa450edef68
Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=56529
Review of r1595174:
1. Call iterator() once. It creates an object, so it is better do not waste such calls.
2. Style issues:
- "" does not make sense as 'generic' default for textAttributeValue. It makes sense for this specific case only.
- 3 spaces indent -> 4 spaces

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1595289 13f79535-47bb-0310-9956-ffa450edef68
Whitespace

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1595293 13f79535-47bb-0310-9956-ffa450edef68
Prep for next release

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1595297 13f79535-47bb-0310-9956-ffa450edef68
Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=56526
Improved StuckThreadDetectionValve to allow to interrupt stuck threads.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1595331 13f79535-47bb-0310-9956-ffa450edef68
Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=56526
Followup to r1595331: correct version number in changelog.
(Tomcat 8.0.8 has been tagged an hour earlier).

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1595359 13f79535-47bb-0310-9956-ffa450edef68
Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=56529
Followup to r1595230
Minor improvement to the testcase: check the actual response produced by test JSP page.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1595365 13f79535-47bb-0310-9956-ffa450edef68