vim-patch:7.4.493

Problem:    A TextChanged autocommand is triggered when saving a file.
	    (William Gardner)
Solution:   Update last_changedtick after calling unchanged(). (Christian
	    Brabandt)

https://code.google.com/p/vim/source/detail?r=v7-4-493

src/nvim/version.c

@@ -245,7 +245,7 @@ static int included_patches[] = {
   //496 NA
   //495 NA
   494,
-  //493,
+  493,
   //492,
   //491,
   //490,