Vim 8.1 release

Update version number and information.  Fix a couple of tests.
diff --git a/runtime/doc/ft_ada.txt b/runtime/doc/ft_ada.txt
index 5f1b78e..b446faf 100644
--- a/runtime/doc/ft_ada.txt
+++ b/runtime/doc/ft_ada.txt
@@ -1,4 +1,4 @@
-*ft_ada.txt*	For Vim version 8.0.  Last change: 2010 Jul 20
+*ft_ada.txt*	For Vim version 8.1.  Last change: 2010 Jul 20
 
 
 		    ADA FILE TYPE PLUG-INS REFERENCE MANUAL~