Add a new limit, defaulting to 2MB, for the amount of data Tomcat will swallow for an aborted upload.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/tc7.0.x/trunk@1603781 13f79535-47bb-0310-9956-ffa450edef68
Followup to the tests for fix for https://issues.apache.org/bugzilla/show_bug.cgi?id=56334#c15
Enable result check for test 07g.
Merged r1603783 from tomcat/trunk.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/tc7.0.x/trunk@1603790 13f79535-47bb-0310-9956-ffa450edef68