[gnome-shell] Update .gitignore

[Jasper St. Pierre <jstpierre src gnome org>]

commit c045ab61712d14de79be006164711966adb68300
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Fri Feb 20 17:37:59 2015 -0800

    Update .gitignore

 .gitignore |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/.gitignore b/.gitignore
index e4490a8..c1eddbf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -32,6 +32,7 @@ data/org.gnome.shell.evolution.calendar.gschema.xml
 data/org.gnome.shell.evolution.calendar.gschema.valid
 data/org.gnome.Shell.PortalHelper.desktop
 data/org.gnome.Shell.PortalHelper.service
+data/theme/.sass-cache
 docs/reference/*/*.args
 docs/reference/*/*.bak
 docs/reference/*/*.hierarchy