patch 8.1.0869: Travis CI script is too complicated

Problem:    Travis CI script is too complicated.
Solution:   Add names to environments.  Move appveyor script outside of src
            directory. (Ozaki Kiichi, closes #3890)
diff --git a/src/version.c b/src/version.c
index 1a2e2be..6da6bea 100644
--- a/src/version.c
+++ b/src/version.c
@@ -784,6 +784,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    869,
+/**/
     868,
 /**/
     867,