Add RebaseResult.FAST_FORWARD_RESULT

Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>

org.eclipse.jgit/src/org/eclipse/jgit/api/RebaseResult.java

 	static final RebaseResult UP_TO_DATE_RESULT = new RebaseResult(
 			Status.UP_TO_DATE);
 
+	static final RebaseResult FAST_FORWARD_RESULT = new RebaseResult(
+			Status.FAST_FORWARD);
+
 	private final Status mySatus;
 
 	private final RevCommit currentCommit;