patch 7.4.872

Problem:    Not using CI services available.
Solution:   Add configuration files for travis and appveyor. (PR #401)

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    872,
 /**/
     871,
 /**/