Revert r1482834

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1483359 13f79535-47bb-0310-9956-ffa450edef68
Reload rather than redeploy a web application when XML and external WAR are present and the WAR is updated. No need to redeploy since the XML won't change.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1483360 13f79535-47bb-0310-9956-ffa450edef68
Update tests after reverting r1462824
Add more modification tests

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1483361 13f79535-47bb-0310-9956-ffa450edef68