[gnome-music/gnome-3-20] bump gtk+ minimum version to 3.19.3

[Felipe Borges <felipeborges src gnome org>]

commit 8b50c314565151601160dfee6dc5cb0b80297182
Author: Felipe Borges <felipeborges gnome org>
Date:   Tue Apr 26 14:08:36 2016 +0200

    bump gtk+ minimum version to 3.19.3
    
    The '-gtk-key-bindings' property was renamed.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=765598

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 178e523..798a113 100644
--- a/configure.ac
+++ b/configure.ac
@@ -31,7 +31,7 @@ PKG_PROG_PKG_CONFIG([0.22])
 
 GLIB_GSETTINGS
 GOBJECT_INTROSPECTION_REQUIRE([1.35.9])
-PKG_CHECK_MODULES([GTK], [gtk+-3.0 >= 3.13.2])
+PKG_CHECK_MODULES([GTK], [gtk+-3.0 >= 3.19.3])
 PKG_CHECK_MODULES(MEDIAART, [libmediaart-2.0])
 
 TRACKER_MIN_VERSION=1.7.1