Fix intermittent NPE in getting commit date in RefModel

James Moger

2014-04-08 4263c2da123d241a7d0fe11e777b7bc80dae4af7

 src/main/java/com/gitblit/models/RepositoryModel.java

@@ -88,6 +88,7 @@
   public boolean acceptNewPatchsets;

   public boolean acceptNewTickets;

   public boolean requireApproval;
   public String mergeTo;



   public transient boolean isCollectingGarbage;

   public Date lastGC;