[ccnet-user] DTD Entities not working in ccnet.config. Works fine in 1.5, broken in 1.6.

[Skel Nonch]

I have a ccnet.config file that uses DTD Entites as specified in the
documentation, for splitting the config file into multiple projects.
This works fine in v1.5 but I have just upgraded to 1.6 and now it is
broken.

<!DOCTYPE cruisecontrol [
        <!ENTITY testproject1 SYSTEM "file:testproject1.xml">
]>
<cruisecontrol xmlns:cb="urn:ccnet.config.builder" xmlns="http://
thoughtworks.org/ccnet/1/6">
        &testproject1;
</cruisecontrol>


The config validator gives me this message
Preprocessing failed loading the XML: Reference to unknown symbol
'projectdirectory'