[gnome-calendar] project: update gitignore

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 090a79100f61385901c997a25671b5d8b0a1d51c
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Tue Mar 28 23:57:01 2017 -0300

    project: update gitignore

 .gitignore |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/.gitignore b/.gitignore
index a8781f2..10efba5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -92,3 +92,4 @@ src/tags
 src/views/tags
 src/views/.dirstamp
 *.goutputstream*
+tags*