[gnome-builder] libide: add inc/dec for vim using <ctrl>a and <ctrl>x

[Christian Hergert <chergert src gnome org>]

commit 6523280867fd7043feeed6026a41d410a726b997
Author: Christian Hergert <christian hergert me>
Date:   Wed Mar 4 17:11:37 2015 -0800

    libide: add inc/dec for vim using <ctrl>a and <ctrl>x

 data/keybindings/vim.css |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/data/keybindings/vim.css b/data/keybindings/vim.css
index a4b1a05..0a5d5a9 100644
--- a/data/keybindings/vim.css
+++ b/data/keybindings/vim.css
@@ -129,6 +129,10 @@
                     "copy-clipboard" ()
                     "delete-from-cursor" (chars, 1) };
 
+  /* change number */
+  bind "<ctrl>a" { "change-number" (1) };
+  bind "<ctrl>x" { "change-number" (-1) };
+
   /* copy */
   bind "y" { "set-mode" ("vim-normal-y", transient) };
   bind "<shift>y" { "save-cursor" ()