BabuDB: merged with branch replicationV2 | major changes: established a new...

BabuDB: merged with branch replicationV2 | major changes: established a new API package to make the usage of BabuDB more comfortable. build a plugin infrastructure and separated the replication mechanisms from the basic BabuDB functionalities into a new plugin-project that can be find in the replication directory 

git-svn-id: https://babudb.googlecode.com/svn/trunk@368 d4c7dd96-b7b2-11dd-893d-d98698f66bbf