0.8dev: Moved `ValidationError` to the top of the module, per the convention in Trac.
0.8dev: Moved `ValidationError` to the top of the module, per the convention in Trac.


git-svn-id: 5633281caa5e9404329cce92d0b6acb034caef48@1574778 13f79535-47bb-0310-9956-ffa450edef68

apache/bloodhound,apache/bloodhound,apache/bloodhound,apache/bloodhound