Align the XML parser configuration between the Digester (web.xml, web-fragment.xml, *.tld) and JspDocumentParser (*.jspx, *.tagx)

git-svn-id: https://svn.apache.org/repos/asf/tomcat/tc7.0.x/trunk@1544211 13f79535-47bb-0310-9956-ffa450edef68
Correctly enforce the restriction in JSR356 that no more than one data message may be sent to a remote WebSocket endpoint at a time.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/tc7.0.x/trunk@1544213 13f79535-47bb-0310-9956-ffa450edef68
Protect against NPE.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/tc7.0.x/trunk@1544216 13f79535-47bb-0310-9956-ffa450edef68