When installing on Windows,

When installing on Windows,
do not leave undeleted stale files in $TEMP/src/res/confinstall/

The cause is that there are two confinstall folders in $dist: '/confinstall' and '/src/res/confinstall'
The 'File /r confinstall' directive was selecting both paths (like issues fixed in r611660),
but subsequent 'RMDir /r "$TEMP\confinstall"' removed only one of them.

New implementaion selects only one copy of the files, and places them into $PLUGINSDIR.

Also,
added DetailPrint statements for operations that take noticeable time
(file copying and spawning external programs).

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1034924 13f79535-47bb-0310-9956-ffa450edef68