Merged revision 1489536 from tomcat/trunk:
IllegalStateException will be thrown if more than one asynchronous dispatch operation is started within the same asynchronous cycle.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/tc7.0.x/trunk@1489706 13f79535-47bb-0310-9956-ffa450edef68
Fix typos.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/tc7.0.x/trunk@1489711 13f79535-47bb-0310-9956-ffa450edef68