Update Issue 1018
Inserted special case in seek logic to position correctly on a filtered event at the end of the log. This required breaking encapsulation of the stored event but eliminates a difficult corner case on restart when the log and the pipeline restart point are both set to a filtered event. 

git-svn-id: http://tungsten-replicator.googlecode.com/svn/trunk@2630 9f5e3340-5c9a-25cb-7c1c-c133a2e9e928