Vim 8.1 release

Update version number and information.  Fix a couple of tests.
diff --git a/runtime/doc/hangulin.txt b/runtime/doc/hangulin.txt
index 08fb612..56f188b 100644
--- a/runtime/doc/hangulin.txt
+++ b/runtime/doc/hangulin.txt
@@ -1,4 +1,4 @@
-*hangulin.txt*  For Vim version 8.0.  Last change: 2015 Nov 24
+*hangulin.txt*  For Vim version 8.1.  Last change: 2015 Nov 24
 
 
 		  VIM REFERENCE MANUAL    by Chi-Deok Hwang and Sung-Hyun Nam