patch 7.4.2015

Problem:    When a file gets a name when writing it 'acd' is not effective.
            (Dan Church)
Solution:   Invoke DO_AUTOCHDIR after writing the file. (Allen Haim, closes
            #777, closes #803)  Add test_autochdir() to enable 'acd' before
            "starting" is reset.

src/version.c

@@ -758,6 +758,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2015,
 /**/
     2014,
 /**/