fix NullPointerException in ITicketService and add TestCase

Kevin Walter

2014-04-14 4868740ed7f40ce0cf162f17a8224856ae10a4b0

 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;