Updated runtime files. Remove version checks for Vim older than 6.0.
diff --git a/runtime/defaults.vim b/runtime/defaults.vim
index 0ff834a..2460fd8 100644
--- a/runtime/defaults.vim
+++ b/runtime/defaults.vim
@@ -31,7 +31,8 @@
" Show @@@ in the last line if it is truncated.
set display=truncate
-" Show a few lines of context around the cursor.
+" Show a few lines of context around the cursor. Note that this makes the
+" text scroll if you mouse-click near the start or end of the window.
set scrolloff=5
" Do incremental searching when it's possible to timeout.