Expose the new WebappLoader flag in the VirtualWebappLoader,
but allow alternative name searchVirtualFirst to make it
consistent with the "virtual" terminology.
Now you can decide, whether the virtual paths will
be searched before the webapp or after it.
If searched before, external resources take precendence
over internal ones. Before that change one couldn't overwrite
resources already present in the webapp.
git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@936825
13f79535-47bb-0310-9956-
ffa450edef68