BabuDB/Java/Replication:

updated the replication plugin to use the newly established dev.api of BabuDB instead of casting the components to their implementations to access internal methods; it provides better flexibility and testability against MOCK objects;

git-svn-id: https://babudb.googlecode.com/svn/trunk@414 d4c7dd96-b7b2-11dd-893d-d98698f66bbf