re-add params interceptor

Needed for many uses of prepare that would take a lot to change. Does not
need the overridden configuration for field types outside of the special case
for the proxy connectors where the field name uses '-' in the key.

git-svn-id: https://svn.apache.org/repos/asf/archiva/branches/archiva-1.3.x@1563549 13f79535-47bb-0310-9956-ffa450edef68
restore token handling for repositoryScanning

git-svn-id: https://svn.apache.org/repos/asf/archiva/branches/archiva-1.3.x@1563550 13f79535-47bb-0310-9956-ffa450edef68
ensure repository deletion works without DMI

Also update and cleanup functional tests accordingly

git-svn-id: https://svn.apache.org/repos/asf/archiva/branches/archiva-1.3.x@1563551 13f79535-47bb-0310-9956-ffa450edef68
remove unused tests

git-svn-id: https://svn.apache.org/repos/asf/archiva/branches/archiva-1.3.x@1563552 13f79535-47bb-0310-9956-ffa450edef68
ensure confirm directory overwrite works without DMI

git-svn-id: https://svn.apache.org/repos/asf/archiva/branches/archiva-1.3.x@1563553 13f79535-47bb-0310-9956-ffa450edef68