Replication: fixed a bug on marking slaves as dead at the SlavesStates.

Replication: fixed a bug causing buffer-not-freed-stacktraces at the master on LogEntry-replication
Replication: changed the debugging output at Basic and Request-Logic and the replication-operations

git-svn-id: https://babudb.googlecode.com/svn/trunk@166 d4c7dd96-b7b2-11dd-893d-d98698f66bbf