patch 8.1.2014: terminal altscreen test fails sometimes

Problem:    Terminal altscreen test fails sometimes.
Solution:   Use WaitFor().
diff --git a/src/version.c b/src/version.c
index d86f9f5..448407f 100644
--- a/src/version.c
+++ b/src/version.c
@@ -758,6 +758,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2014,
+/**/
     2013,
 /**/
     2012,