Vim 8.1 release

Update version number and information.  Fix a couple of tests.
diff --git a/READMEdir/README_ole.txt b/READMEdir/README_ole.txt
index fb1fb01..4c7e645 100644
--- a/READMEdir/README_ole.txt
+++ b/READMEdir/README_ole.txt
@@ -1,4 +1,4 @@
-README_ole.txt for version 8.0 of Vim: Vi IMproved.
+README_ole.txt for version 8.1 of Vim: Vi IMproved.
 
 This archive contains gvim.exe with OLE interface and VisVim.
 This version of gvim.exe can also load a number of interface dynamically (you