vim-patch:7.4.277

Problem:    Using ":sign unplace *" may leave the cursor in the wrong position
            (Christian Brabandt)
Solution:   Update the cursor position when removing all signs.

https://code.google.com/p/vim/source/detail?r=373204662d82e894b27ee76bc3319bc62c91f6ae

src/nvim/version.c

@@ -210,7 +210,7 @@ static int included_patches[] = {
   //280,
   //279,
   //278,
-  //277,
+  277,
   //276,
   //275,
   274,