Vim 8.1 release

Update version number and information.  Fix a couple of tests.
diff --git a/runtime/doc/netbeans.txt b/runtime/doc/netbeans.txt
index 722cec6..3e99f8b 100644
--- a/runtime/doc/netbeans.txt
+++ b/runtime/doc/netbeans.txt
@@ -1,4 +1,4 @@
-*netbeans.txt*  For Vim version 8.0.  Last change: 2016 Jul 15
+*netbeans.txt*  For Vim version 8.1.  Last change: 2016 Jul 15
 
 
 		  VIM REFERENCE MANUAL    by Gordon Prieur et al.