/**
  * Create a new filter to select commits after a given date/time.
  * 
  * @param ts
  *            the point in time to cut on.
  * @return a new filter to select commits on or after <code>ts</code>.
  */
 public static RevFilter after(DateTime ts)
 {
     return new After(ts.ToGitInternalTime());
 }
 /**
  * Create a new filter to select commits before a given date/time.
  * 
  * @param ts
  *            the point in time to cut on.
  * @return a new filter to select commits on or before <code>ts</code>.
  */
 public static RevFilter before(DateTime ts)
 {
     return new Before(ts.ToGitInternalTime());
 }