Fix intermittent NPE in getting commit date in RefModel

James Moger

2014-04-08 4263c2da123d241a7d0fe11e777b7bc80dae4af7

 src/main/java/com/gitblit/manager/IManager.java

@@ -17,7 +17,8 @@

public interface IManager {

   IManager setup();
   IManager start();

   IManager stop();

}