trunk build broken again

[Rafael Schloming]

I just had to fix the trunk build again. This time the culprit was more 
sloppy submits and the SNAPSHOT dependency on junit-toolkit. Apparently 
the latest junit-toolkit SNAPSHOT breaks some of the APIs we depend on.

I've changed the junit-toolkit dependency from 0.6-SNAPSHOT to 
0.6-20070718.144514-11 as an immediate workaround, but someone in the 
know should take a look at 
org.apache.qpid.interop.coordinator.Coordinator and determine an 
appropriate fix.

FWIW it seems like a really bad idea to ever use the SNAPSHOT feature of 
maven as our build can be arbitrarily broken by changes in other projects.

--Rafael